Page 2 : BIOLOGY (056), QUESTION BANK, Question, no., , Question, , Marking, scheme, , Chapter Page, No., No., , MCQ, 1, , The outer layer of pollen grain is thick, and made up of complex ,nonbiodegradable substance called, as…………………., , Correct answer, 1 mark, , 1, , 3, , Correct answer, 1 mark, , 1, , 3, , Correct answer, 1 mark, , 1, , 5, , Correct answer, 1 mark, , 1, , 8, , A. lignin, B. cellulose, C. pectin, D. Sporopollenin, , 2, , Sporoderm is made up of …………., A. exosporium and endosporium, B. outer integuments and inner integument, C. testa and tegmen, D. exine and intine, , 3, , The number of meiotic and mitotic, divisions necessary for development, of female gametophyte in, angiosperms is..., A. 1 meiosis and 2 mitosis, B. 1 mitosis and 3 meiosis, C. 1 meiosis and 1 mitosis, D. 1 meiosis and 3 mitosis., , 4, , Identify the odd one with respect to, pollinating agent., A. Baobab, B. Bottle brush, C. Kadamb, D. Sausage

Page 3 : 5, , In vitro pollen germination and pollen, Correct answer, tube elongation can be induced by----- 1 mark, -, , 1, , 9, , Correct answer, 1 mark, , 1, , 9, , Correct answer, 1 mark, , 1, , 10, , Correct answer, 1 mark, , 1, , 11, , Correct answer, 1 mark, , 1, , 13, , The example of dicot endospermic seed is Correct answer, …., 1 mark, , 1, , 13, , A. boric acid, B. glucose, C. lactose, D. sucrose, , 6, , Self-incompatibility is found in flowers of, plants….., A. Calotropis, B. maize, C. Thea, D. Gloriosa, , 7, , Porogamy refers to entry of pollen tube, through….., A. integuments, B. chalaza, C. micropyle, D. stigma, , 8, , ……… is an example of helobial, endosperm., A. Adoxa, B. coconut, C. Asphodelus, D. sunflower, , 9, , The single shield shaped cotyledon in, monocot seed is known as ……, A. coleoptile, B. scutellum, C. aleurone layer, D. perisperm, , 10

Page 4 : A. castor, B. pea, C. mango, D. bean, Single sentence answers, , Key word in, answer, , 1, , Why anther is called as tetrasporangiate, structure?, , Presence of four, pollen sacs in, dithecus anther, , 1, , 3, , 2, , At which stage pollen grains are shed, from the anther in Angiosperms?, , Bicelled stage, , 1, , 4, , 3, , What is hilum with respect to ovule?, , Place of, attachment of, funiculus with, main body of, ovule., , 1, , 4, , 4, , What is protandry?, , Condition where, androecium, matures earlier, the gynoecium, , 1, , 9, , 5, , Name any one plant in which double, fertilization was discovered?, , Fritillaria or, Lilium, , 1, , 10, , 6, , Why fertilization process in angiosperms, is called as double fertilization?, , Both male, gametes are, used., , 1, , 10, , 7, , Which is the most common type of, endosperm in angiospermic families?, , Nuclear type, , 1, , 11, , 8, , What is the role of suspensor during the, development of embryo?, , Pushes embryo, into the, endosperm, , 1, , 12, , 9, , What is adventive polyembryony?, , Embryo, develops from, somatic cells or, integuments, , 1, , 14, , 10, , Name the hormone produced by, unfertilised ovary responsible for, enlargement of ovary into fruit., , Indole -3 acetic, acid / auxins, , 1, , 15

Page 5 : 2 marks, 1, , Draw a well labelled diagram of T.S., anther., , Four correct, labels, , 1, , 3, , 1, , 3, , 1, , 4, , 1, , 5, , 1, , 6, , 1, , 8, , ½ mark each, 2, , Describe the structure of pollen grain., , Wall layers,, ploidy and fate, of pollen grain., Formation, through meiosis., Each point ½, mark, , 3, , Draw a well labelled diagram of male, gametophyte of angiosperms., , Diagram-1, mark,, Any two correct, labels (male, gamete, tube, nucleus and, pollen tube) ½, mark each., , Describe the structure of female, gametophyte of angiosperms., , 4 points, , Mention various adaptations for wind, pollination., , Any four points, , What are the different adaptations shown, by bird pollinated flowers?, , Any four points, , 7, , Explain heterostyly and herkogamy with, suitable example., , Meaning ½, mark and, example ½ mark, each., , 1, , 9, , 8, , Give the significance of double, fertilization., , Any four points,, ½ mark each, , 1, , 10 &, 11, , 9, , Mention significance of fruit and seed, formation., , Two points 2, marks, , 1, , 14, , 10, , Give an account of polyembryony., , Meaning-1/2, mark, , 1, , 15, , 4, , 5, , 6, , ½ mark each, , ½, mark each., , ½ mark each, , Reason-1/2, mark

Page 6 : Types ½ mark, each, 3 marks, 1, , Describe internal structure of anther, (diagram is not expected)., , Three wall, layers -1/2 mark, each, , 1, , 3, , 1, , 4, , 1, , 7, , Tapetumstructure and, function-1, marks, Pollen mother, cell, nature/function1/2 mark, 2, , Explain the development of male, Development, gametophyte in angiosperms (diagram inside anther-1, is not expected)., and ½ marks, Development, over stigma-1, and 1/1 marks, , 3, , Explain water pollination in detail with its Definition-1, types., mark, Each type with, example-1 mark, , 4, , Give an account of any two biotic agents, for pollination along with their, adaptations., , Three, adaptations for, each agency- 1, and ½ mark, , 1, , 7/8, , 5, , Explain any two contrivances or, outbreeding devices for pollination., , 1 and ½ marks, for correct, contrivances., , 1, , 8/9, , 6, , Describe the process of fertilization in, angiosperms with the help of, diagram., , Process – 2, marks, , 1, , 10, , 7, , Write a note on different types of, endosperms in angiosperms., , Each type -1, mark, , 1, , 11, , 8, , Describe the development of dicot, embryo in flowering plants., , six sequential, stages carrying, ½ mark each, , 1, , 11/12, , 9, , Draw a well labelled diagram of monocot, seed you have studied., , Any six labels1/2 mark each, , 1, , 13, , Diagram-1 mark

Page 7 : 10, , Explain various categories of apomixis., , 1 mark each, type, , 1, , 14, , Structure -2, marks, , 1, , 4, , 1, , 5, , 4 marks, 1, , Describe the structure of anatropus ovule, with the help of labelled diagram., , Diagram with, four correct, labels -2 marks, 2, , Describe the development of female, gametophyte of angiosperms with the, help of diagram., , Process upto 7, celled 8 nucleate, stage -2 marks, Sequential, diagrams -2, marks, , 3, , Give an account of various abiotic, agencies used in pollination along, with their adaptations for pollination., , 2 marks for each, agency, , 1, , 6/7, , 4, , Give an account of pollen pistil, interaction in detail., , Meaning- 1, mark, , 1, , 9, , 1, , 10/11, , Recognition of, pollen and, germination – 1, mark, significance- 1, mark, 5, , Describe the process of double, fertilization in angiosperms and add a, note on its significance., , Process- 2, marks, Significance (, two points) -2, marks

Page 8 : Question, no., , Question, , Marking, scheme, , Chapter Page, No., No., , MCQ, 1, , The primary sex organ in human males is, A. prostate gland, , Correct answer, 1 mark, , 2, , 20, , Correct answer, 1 mark, , 2, , 21, , Correct answer, 1 mark, , 2, , 24, , Correct answer, 1 mark, , 2, , 26, , Correct answer, 1 mark, , 2, , 29, , B. seminal vesicle, C. penis, D. testis, 2, , Seminal fluid is ------- in nature., A. acidic, B. neutral, C. sugary, D. alkaline, , 3, , Which of the following is not a part of, uterus?, A. body, B. cervix, C. fundus, D. cornua, , 4, , Meanrch, menstrual cycle and menopause, are controlled by----A. thyrotropic hormone, B. gonadotropic hormone, C. somatotropic hormone, D. corticotropin, , 5, , Nebenkern is --------A. acrosome of sperm, B. neck of sperm, C. middle piece of sperm, D. mitochondrion of sperm

Page 9 : 6, , Nervous system develops from……. of, embryonic layer., , Correct answer, 1 mark, , 2, , 35, , The average period of pregnancy in human Correct answer, lasts for……. days of pregnancy., 1 mark, , 2, , 35, , Correct answer, 1 mark, , 2, , 39, , Correct answer, 1 mark, , 2, , 43, , Correct answer, 1 mark, , 2, , 21, , 2, , 21, , A. endoderm, B. chorion, C. ectoderm, D. mesoderm, 7, , A. 280, B. 270, C. 266, D. 290, 8, , ……… is not a permanent method of birth, control., A. vasectomy, B. tubectomy, C. withdrawal, D. castration, , 9, , The organism which causes Gonorrhoea, is……, A. Trepenoma, B. Neisseria, C. Entamoeaba, D. Salmonella, , 10, , How many pairs of testis are present in, human male?, A. 2 pairs, B. 1 pair, C. only one testis, D. only one ovary, Single sentence answers, , 1, , Name the enzyme secreted by the prostate, gland., , Key word in, answer, Acid, phosphatase

Page 10 : 2, , What is glans penis?, , Swollen tip of, externa, genitalia or, penis, , 2, , 22, , 3, , What is atresia with respect to ovary in, human females?, , Large scale, destruction of, primordial, follicles., , 2, , 23, , 4, , Name the hydrolytic enzyme secreted by, the acrosome., , Hyluronidase, , 2, , 29, , 5, , What is morula?, , 16-32 celled, stage develops, during cleavage, , 2, , 33, , 6, , What is the function of inner cell mass?, , Embryo proper, develops form, these cells, , 2, , 33, , 7, , Name the embryonic layer from which, Mesoderm, heart, blood and blood vessels develop., , 2, , 35, , 8, , Identify the permanent birth control method Tubectomy, in given diagram., , 2, , 41, , 9, , What is the use of tablet ‘Saheli’?, , Oral, contraceptive, pill, , 2, , 41, , Lippes loop, , 2, , 15, , 10, , Identify the IUD in the given diagram.

Page 11 : 2 marks, 1, , Draw a well labelled diagram of L.S., human testis., , Four correct, labels-½ mark, each, , 2, , 20, , 2, , Describe the structure of Graafian follicle., , Four correct, points -Each, point ½ mark, , 2, , 24, , 3, , Write a short note on fallopian tube., , Three correct, parts-1 and ½, marks, , 2, , 24, , 2, , 25, , 2, , 30, , Any one, function-1/2, mark, 4, , 5, , Give an account of external genitalia in, human females., , Any four parts-, , Explain the structure of secondary oocyte., , Any four points, , ½ mark each, , ½, mark each., 6, , Write an account of cleavage during, embryonic development in humans., , Any four points, with morula, stage-½ mark, each, , 2, , 33, , 7, , Identify the parts labelled in the given, diagram., , Each label-1/2, mark, , 2, , 34, , 8, , What is lactation? Which hormone is, responsible for its regular secretion?, , Two correct, points -1 mark, each, , 2, , 38, , 9, , Mention any two different goals of RCH, programme., , Two correct, points-1 mark, each., , 2, , 39

Page 12 : 10, , What is MTP? Upto which month it is, , Four correct, points-1/2 mark, each., , 2, , 41, , Structure- 2, marks, , 2, , 20, , 3 marks, 1, , Describe the histology of testis with help of, labelled diagram., , Diagram with, two correct, labels -1 mark, 2, , Identify the labels from the given diagram., , Each correct, label – ½ mark, , 2, , 22, , 3, , Describe the histological structure of, human ovary (diagram not expected)., , Three correct, points-1 mark, each., , 2, , 23, , 4, , Explain the structure of human sperm with, labelled diagram., , Structure -2, marks, , 2, , 29, , Diagram with, any two correct, labels-1 mark, 5, , Describe the process of oogenesis in human, female., , Three stages, with correct, explanation-1, mark each, , 2, , 29-30, , 6, , Write a note on implantation., , Correct, explanation,, three points-1, mark each., , 2, , 34, , 7, , Human pregnancy shows three prominent, trimesters. Answer the following, question based on these trimester., , 1 mark each, , 2, , 35-36, , i) What is morning sickness during first, trimester?, ii) Name the hormone secrete in second, trimester.

Page 13 : iii) The organ which secretes hormone in, second trimester is…, 8, , Explain the process of parturition., , Correct, explanation of, three stages- 1, mark each, , 2, , 38, , 9, , Explain any three measures to achieve, goals of RCH., , Any three, correct, methods-1 mark, each., , 2, , 39, , 10, , Explain any three methods that can be used Any three, to overcome infertility., methods-1 mark, each, , 2, , 43-44, , 2, , 21, , 4 marks, 1, , Write an account of seminal vesicle and, bulbourethral gland in male, reproductive system., , Three correct, points-1 and ½, marks, Any one, function-1/2, mark, For each gland, , 2, , Explain ovarian cycle with its different, phases., , Four phases- 1, mark each, , 2, , 26-27, , 3, , Describe the process of spermatogenesis, with the help of diagram., , Three stages-3, marks, , 2, , 28-29, , 2, , 31-32, , 2, , 39-40, , Diagram with, two correct, labels-1 mark, 4, , Explain mechanism of fertilization in, humans., , Movement of, sperm- 1 mark, Entry of sperm1 mark, Activation of, sperm-1 mark, Syngamy 1, mark, , 5, , Write in detail any four temporary methods, of birth control., , Any four, method with, correct, explanation -1, mark each.

Page 14 : Question, no., , Question, , Marking scheme, , Chapter Page, No., No., , MCQ, 1, , The three principles of Mendelism are, A. Dominance, segregation and, independent assortment, , Correct answer –, 1mark, , 3, , 52, , Correct answer –, 1mark, , 3, , 53, , Correct answer –, 1mark, , 3, , 54, , Correct answer –, 1mark, , 3, , 57, , B. Linkage, segregation and independent, assortment, C .Linkage, dominance and segregation, D. Linkage, dominance and, Independent assortment., , 2, , Which one of the following is back cross?, A. F1 × F1, B. F1 × Recessive parent, C. F1 × Dominant parent, D. F1 × Any parent, , 3, , RR (Red) Antirrhinum is crossed with, white (WW) one. Offspring (RW) are pink, .This is an example of, A. Dominant -recessive, B. Incomplete dominance, C. Hybrid, D. Supplementary genes, , 4, , The word chromosome was coined by, A. Benda, B. Waldeyer, C. Robert Hooke, D. T.H.Morgan

Page 15 : 5, , Nullisomy is represented by....., A. (2n-1), , Correct answer –, 1mark, , 3, , 57, , Correct answer –, 1mark, , 3, , 57, , Correct answer –, 1mark, , 3, , 64, , Correct answer –, 1mark, , 3, , 64, , Correct answer –, 1mark, , 3, , 67, , Correct answer –, 1mark, , 3, , 67, , B. (2n-2), C.(2n+1), D.(2n+2), 6, , Identify the odd one:A. Monoploidy, B.Diploidy, C.Polyploidy, D.Hyperploidy, , 7, , In humans, the sex chromosome, complement is, A.XX-XY, B. XX-XO, C.ZZ-ZO, D. ZW-ZZ, , 8, , A family has five daughters and expecting, sixth child. The chance of its beings a son, is ……, A. zero, B.25%, C.50%, D. 100%, , 9, , In human beings 45 chromosomes/single, X/XO abnormality causes, A. Down's syndrome, B. Klinfelter's syndrome, C. Turner's syndrome, D. Edward's syndrome, , 10, , Webbed neck is characteristic of …, syndrome., A.XXX

Page 16 : B. YY, C. XXY, D. XO, , Single sentence answers, , Key word in, answer, , 1, , Define inheritance., , Transmission of, characters from, generation to, generation, , 3, , 49, , 2, , What is allelomorph?, , Alternating forms, of genes, , 3, , 50, , 3, , What is test cross?, , Cross between F1, plant and its, recessive parent, , 3, , 53, , 4, , Define euploidy., , Chromosome, number in a cell is, exact multiple of, primary basic, number., , 3, , 57, , 5, , Give on example of complete linkage., , X- chromosome of, Drosophila male., , 3, , 59, , 6, , How many linkage groups are present in, Drosophila melanogaster?, , 4 linkage groups, , 3, , 59, , 7, , Which genes show straight inheritance?, , Y-linked genes, , 3, , 62, , 8, , How drones are produced in honey bees?, , Parthenogenetically, ., , 3, , 66, , 9, , What is the reason for 21st trisomy?, , Non disjunction or, failure of, separation of, chromosomes or, autosomes during, gametogenesis., , 3, , 66, , 10, , Give the example of X- monosomy you, have studied., , Turner’s syndrome., , 3, , 67, , 1 mark each, , 3, , 49/, , 2 marks, 1, , Discuss any two points due to which, Mendel got success in his experiment?, , 50

Page 17 : 2, , Give any two points of difference between, homozygous and heterozygous., , 1 mark each., , 3, , 50, , 3, , Explain test cross with suitable example, and state its ratios., , Representation of, cross- 1 mark, , 3, , 53, , 3, , 54, , 3, , 54, , Ratio( phenotypic, and genotypic) -1, mark, 4, , Give an account of incomplete dominance, with suitable example., , Representation of, cross- 1 mark, Ratio( phenotypic, and genotypic) -1, mark, , 5, , Explain codominance in colour coat in, cattle with checker board method., , Representation of, cross- 1 mark, Ratio( phenotypic, and genotypic) -1, mark, , 6, , Write an account of chromosomal theory, of inheritance., , Four correct points, -2 marks, , 3, , 56, , 7, , Write a note on sex linkage., , Complete sex, linkage – 1 mark, , 3, , 59, , Incomplete sex, linkage -1 mark, , 8, , Differentiate between complete and, incomplete linkage., , Two correct points2 marks, , 3, , 59, , 9, , Explain mechanism of sex determination, in birds., , Correct explanation, -1 mark, , 3, , 65, , 3, , 66, , Representation – 1, mark, 10, , Give detail account of thalassemia., , Correct explanation, Two points-1 mark, Symptoms any, two- 1 mark

Page 18 : 3 marks, 1, , Enlist dominant and recessive characters, in pea plant with respect to position of, flower, colour of seed and colour of pod in, tabulated form., , Each correct, character -1/2 mark, , 3, , 49, , 2, , Give an account of pleiotropy with, suitable example., , Correct explanation, -1 mark, , 3, , 55, , Representation – 1, mark, Ratio-1 mark, 3, , Describe the structure of sex, chromosomes with the help of labelled, diagram., , Structure of X and, Y chromosomes – 1, mark each and, diagrams- 1 mark, , 3, , 58, , 4, , What is autosomal inheritance? Explain, different disorders due to autosomal, inheritance., , Definition-1 mark, , 3, , 61, , 3, , 62, , 3, , 6364, , 3, , 65, , 3, , 66, , 3, , 67, , 3, , 67, , Widow’s peak-1, mark, Phenylketonuria-1, mark, , 5, , 6, , 7, , 8, , Explain inheritance pattern of colour, blindness with suitable chart., , Explanation- 1mark, , Write a note on bleeder’s disease and its, inheritance with suitable chart., , Explanation- 1mark, , Explain the mechanism of sex, determination in humans with suitable, chart., , Explanation -2, mark, , Write a note on Down’s syndrome., , Reason for trisomy1 mark, , Representation 2, marks, , Representation 2, marks, , Representation -1, mark, , Any four, symptoms-2 marks, 9, , What are the different characters that, develop due to Klinfelter’s syndrome?, , Reason for Xmonosomy- 1 mark, Any four, symptoms-2 marks, , 10, , Give reasons for development of Turner’s, syndrome and also mention its symptoms., , Reason -1 mark

Page 19 : Any four, symptoms-2 marks, 4 marks, 1, , 2, , Define inheritance. Give statements for, various laws of inheritance., , Definition- 1 mark, , Explain intragenic and intergenic, interaction with the help of example., , Intragenic, interaction any one, example from, incomplete, dominance or, codominance-2, marks, , 3, , 52, , 3, , 54/, , Statements for 3, laws- 1 mark each, , 55, , Intergenic, interactionPleiotropy- 2marks, 3, , 4, , Explain structure of chromosomes with, labelled diagram., , Structure- 2 marks, , Give detail account of sex linked, inheritance., , Definition- 1 mark, , 3, , 5758, , 3, , 62, , 3, , 6667, , Diagram with any, four correct labels2 marks, , X-linked, inheritance- 1 mark, Y-linked, inheritance- 1 mark, , 5, , Give an account of one Mendelian and, one chromosomal disorder you have, studied., , Mendelian disorder, ThalassemiaExplanation-1 mark, Symptoms-any two- 1, mark, Chromosomal, disorders:Down’s syndrome/, turner’s syndrome/, Klinfelter’s syndromeany one, Explanation- 1 mark, , Any two, symptoms-1 mark

Page 20 : Question, no., , Question, , Marking scheme, , Chapter, No., , Page, No., , 1, , 4, , 73, , 1, , 4, , 71, , 1, , 4, , 76, , 1, , 4, , 76, , 1, , 4, , 77, , MCQ, 1, , Find the odd one out:, A H2A, B H3, C H2B, D H1, , 2, , What happened when heat killed S-cells, along with live R-cells were injected into, mice?, A Mice died and showed live S-cells, B Mice survived and showed live S-cells, C Mice died and showed live R-cells, D Mice died and showed dead R-cells, , 3, , Find out the double ring compound :, A Adenine, B Uracil, C Cytosine, D Thymine, , 4, , If a DNA has 20 Adenine and 30, cytosine bases. What will be the total, number of purine bases in the given, sample?, A 20, B 50, C 30, D 100, , 5, , Semiconservative mechanism of DNA, was detected using:, A 35S, B 14C, C 32P

Page 21 : D 15N, 6, , A template strand of DNA has base, sequence CATGATTAC. New strand, synthesized on it will be :, , 1, , 4, , 76, , 1, , 4, , 75, , 1, , 4, , 83, , 1, , 4, , 82, , 1, , 4, , 84, , 1, , 4, , 83, , A GATCAUATG, B GTACTAACG, C GAACTAATG, D GTACTAATG, 7, , During DNA replication, the separated, strands of DNA are prevented from, recoiling by, A DNA primase, B Sigma factor, C Rho-factor, D SSBP, , 8, , In which of the following synthesis of, DNA strand is not involved directly?, A m RNA, B t RNA, C Another DNA strand, D Protein, , 9, , Wobble hypothesis is related with, A Ambiguity in codon, B Purine pyrimidine equality, C Genetic code is triplet, D Degeneracy of genetic code and, economy of tRNA molecules in the cell, , 10, , During elongation of polypeptide chain,, sigma factor is :, A Functionless, B Retained for specific function, C Released for re-use, D Required during closing of chain, , 11, , Enzyme required for peptide formation is, :

Page 22 : A Peptidase, B Peptidyl transferase, C Nitrogenase, D Nitrate reductase, 12, , Exon segments are reunited after, splicing by, , 1, , 4, , 79, , 1, , 4, , 87, , 1, , 4, , 86, , 1, , 4, , 76, , A RNA primase, B RNA protease, C RNA polymerase, D RNA ligase, 13, , In lac operon, lactose acts as:, A Inducer, B Co-inducer, C Repressor, D Co-repressor, , 14, , A unit of lac-operon which in the, absence of lactose, suppresses the activity, of operator gene is :, A Structural gene, B Regulatory gene, C Repressor protein, D Promoter gene, , 15, , A DNA segment has 75 cytosine and 40, thymine nucleotides. What shall be the, total number of phosphates in the DNA, segment?, A 115, B 230, C 75, D 220, Single sentence answers, , 1, , What is the principle of DNA profiling?, , 1, , 4, , 89, , 2, , What is the use of southern blotting in, DNA fingerprinting?, , 1, , 4, , 90, , 3, , Enlist the genes in Lac operon, , 1, , 4, , 86

Page 23 : 4, , What is meant by an operon?, , 1, , 4, , 86, , 5, , AUG codon gives _______________ &, ___________ amino acids in prokaryotes, & Eukaryotes respectively., , 1, , 4, , 84, , 6, , What is meant by activation of amino, acids?, , 1, , 4, , 84, , 7, , What is the role of Mg++ in Translation?, , 1, , 4, , 84, , 8, , What are the different types of, mutations?, , 1, , 4, , 82, , 9, , Enlist the names of enzymes used in, semiconservative replication of DNA?, , 1, , 4, , 75,76, , 10, , What is central dogma of molecular, biology?, , 1, , 4, , 77, , 11, , What type of isotopes used in, semiconservative replication experiment?, , 1, , 4, , 76,77, , 12, , What is the function of RNA primer?, , 1, , 4, , 76, , 13, , What is the function of SSBP?, , 1, , 4, , 75, , 14, , Define RFLP’, , 1, , 4, , 89, , 15, , Define Heterochromatin, , 1, , 4, , 74, , Two points, , 4, , 74, , 2 marks, 1, , Differentiate between Heterochromatin, & Euchromatin’, , 1 mark each, , 2, , How t-RNA acts as an adapter molecule? Explanation 1 mark, Explain in detail with the help of a, diagram-1 mark, diagram., , 4, , 82,83, , 3, , Define mutation. State its two types, , 4, , 82, , Definition-1 mark, Each type:- ½ mark, , 4, , Describe Hershey-Chase experiment in, detail., , Correct, explanation-2, marks, , 4, , 71,72, , 5, , Explain the role of Lactose as inducer in, Lac-operon., , Correct, explanation-2, marks, , 4, , 87, , 6, , Draw neat and labelled diagram of, Nucleosome., , Four correct labels2 marks, , 4, , 73, , 7, , Write a note on: packaging of DNA in, prokaryotes., , Correct, explanation, four, , 4, , 73

Page 24 : points-1/2 mark, each., 8, , Write a note on: packaging of DNA in, Eukaryotes., , Correct, explanation, four, points-1/2 mark, each., , 4, , 74, , 9, , Explain Avery, McCarty and MacLeod’s, experiment in detail, , Correct, explanation, four, points-1/2 mark, each., , 4, , 71, , 10, , Draw neat and labelled diagram of, Replication Fork., , Four correct labels-, , 4, , 75, , 4, , 70,71, , ½ mark each, , 3 marks, 1, , Explain the Griffith’s experiment in, detail with diagram., , Explanation-2, marks, Diagram-1 mark, , 2, , Describe any three characteristics of, Genetic code., , 1 mark each, , 4, , 81,82, , 3, , Mention any three objectives of Human, Genome project., , 1mark each, , 4, , 88,89, , 4, , Explain different step involved in DNA, Fingerprinting., , Six correct steps in, sequence, , 4, , 89, , ½ mark each, 5, , Draw a neat and labelled diagram of, transcription and processing of hn-RNA, , Three steps-1 mark, each, , 4, , 79, , 6, , Draw a neat and labelled diagram, explaining Meselson’s and Stahl’s, experiment., , Three steps-1 mark, each, , 4, , 77, , 7, , How Meselson and Stahl explained the, concept of Semiconservative Replication, of DNA experimentally?, , Correct, explanation, three, points- 3marks, , 4, , 76,77, , 8, , Explain the concept of operon., , Role of three, enzymes- 1 mark, each, , 4, , 86, , 9, , Give diagrammatic representation of, Lac-operon in the presence of inducer., , Three correct, labels- 1 mark each, , 4, , 87, , 10, , Define Genomics. Give any two, applications of the genomics., , Definition-1 mark, , 4, , 87,88, , Two applications1 mark each

Page 25 : 4 marks, 1, , 2, , 3, , Describe the process of semiconservative, replication of DNA with the help of neat, and labelled diagram., , Describe the mechanism of translation, with the help of neat and labelled, diagram., , Explain processing of hn-RNA with the, help of neat and labelled diagram., , Four correct, points-2 marks, , 4, , 75,76, , 4, , 83,84,85, , 4, , 78,79, , Each term- 1 mark, , 4, , 86,87, , Definition-1 mark, , 4, , 89,90, , Diagram with four, correct labels-2, marks, Three correct, points -3 marks, Diagram with two, labels-1 mark, Three steps-3, marks, Diagram showing, any one step, correctly-1 mark, , 4, , With respect to lac- operon explain the, following terms:i) regulator gene, ii) promoter gene, iii) structural gene, iv) inducer, , 5, , Define DNA fingerprinting? State any, three applications of it., , Three applications3 marks

Page 26 : Question, no., , Question, , Marking scheme, , Chapter Page, No., No., , MCQ, 1, , ____________ is considered as, connecting link between ape and man., , Australopithecus, , 5, , 114, , Chimpanzees, , 5, , 113, , gene frequency, , 5, , 100, , translocation, , 5, , 101, , Genetic drift, , 5, , 101, , A Australopithecus, B Homo habilis, C Homo erectus, D Neanderthal man, 2, , Humans are most closely related to, _________., A Marsupial, B Lemur, C Chimpanzees, D Tarsier, , 3, , The proportion of an allele in the gene, pool to the total number of alleles at a, given locus is called ___________., A gene pool, B gene frequency, C gene flow, D genetic drift, , 4, , Transfer of a part of chromosome or set, of genes to a non-homologous, chromosome is called ___________., A deletion, B duplication, C inversion, D translocation, , 5, , Any random fluctuation in allele, frequency, occurring in the natural, population by pure chance is called, __________., A gene pool, B gene mutation, C genetic recombination

Page 27 : D genetic drift, Single sentence answers, 1, , Define the term ‘Mendelian population’., , Interbreeding, population, , 5, , 100, , 2, , Define Gene pool., , Total number of, genes, , 5, , 100, , 3, , Name the ancestor of human also known, as man with ape brain., , Australopithecus, , 5, , 114, , 4, , Name the ancestor of human nicknamed, as Handy man, , Homo habilis, , 5, , 114, , 5, , Whose fossils were discovered at the site, of Shivalik hills, India?, , Ramapithecus, , 5, , 114, , 5, , 115, , 5, , 113, , 5, , 103, , 2 marks, 1, , Mention any two developments in human 2 points – 2 marks, which helped him to move around safely, on land., , 2, , Distinguish New world and old world, monkeys based on their tail along with, their examples., , 1 point – 1 mark, , What is hybrid sterility?, , Definition – 1, mark, , 3, , Example – 1 mark, , Example - 1 mark, 4, , What led to better utilization of hands for 2 points – 2 marks, holding objects effectively and better, motor skills?, , 5, , 115, , 5, , Describe modern man., , 2 points – 2 marks, , 5, , 114, , 6, , Distinguish between Australopithecus, and Neanderthal man, , 2 points – 2 marks, , 5, , 114, , 7, , Distinguish between Homo erectus and, Neanderthal man, , 2 points – 2 marks, , 5, , 114, , 3 marks, 1, , Name any three types of premating, isolating mechanisms., , 3 points – 3 marks, , 5, , 102, , 2, , Name any three types of postmating, isolating mechanisms., , 3 points – 3 marks, , 5, , 103, , 3, , Explain Geographical Isolation, , 3 points – 3 marks, , 5, , 102, , 4, , Write down the three main concepts of, modern synthetic theory., , 3 points – 3 marks, , 5, , 100

Page 28 : 5, , 6, , What is chromosomal aberration? Give, any two types of aberrations found in, population., , Definition -1 mark, , 5, , 101, , Complete the table based on the special, features of Human ancestors showing, their cultural and social development., , 1 - used fire, , 5, , 114, , 3 points – 3 marks, , 5, , 114, , What is genetic variation? Explain any, three factors responsible for genetic, variation., , Definition – 1, mark, , 5, , 100, , Explain the concept of Natural Selection, with the example of Industrial Melanism., , 8 points – 4 marks, , 5, , 102, , 2 types – 2 marks, , 2 – Neanderthal, 3 – Homo habilis, , Ancestors, , Special features, , Homo erectus, Buried their dead, Made tools from, stones, 7, , Write a note on Homo habilis, 4 marks, , 1, , 2, , Any 3 factors – 3, marks

Page 29 : Question, no., , Question, , Marking scheme Chapter, No., , Page, No., , MCQ, 1, , Water present in the form of hydrated, oxides of Silicon, Aluminium is called, _______________, , 1, , 6, , 120, , 1, , 6, , 119, , 1, , 6, , 119, , 1, , 6, , 119, , 1, , 6, , 120, , A Hygroscopic Water, B Gravitational Water, C Combined Water, D Capillary Water, 2, , Most plant cells and tissues constitutes, _______% water, A 90-95 %, B 70-80 %, C 10-25 %, D 0-20 %, , 3, , ______________ type of tissues are, present in epiphytic roots, A Meristematic, B Parenchyma, C Velamen, D Epithelial, , 4, , In the zone of absorption, epidermal, cells form unicellular hair like, extensions called _________, A Epiblema cells, B Roots, C Root hairs, D Velamen tissues, , 5, , Outer layer of root hair is made up of, _________, A Cellulose, B Lignin

Page 30 : C Starch, D Pectin, 6, , Inner layer of root hair is made up of, __________, , 1, , 6, , 120, , 1, , 6, , 120, , 1, , 6, , 120, , 1, , 6, , 120, , 1, , 6, , 120, , A Cellulose, B Lignin, C Starch, D Pectin, 7, , Cell wall is __________, A Selectively Permeable, B Freely Permeable, C Non Permeable, D Impermeable, , 8, , Plasma Membrane is ___________, A Selectively Permeable, B Freely Permeable, C Non Permeable, D Impermeable, , 9, , Root hair is _____________ extension of, epiblema cells, A Cytoplasmic, B Protoplasmic, C Nucleoplasmic, D Cellulosic, , 10, , Fine soil particles imbibe or absorb, water and hold it. This is called as, ___________, A Hygroscopic Water, B Gravitational Water, C Combined Water, D Capillary Water, Single sentence answers, , 1, , Why water acts as a thermal buffer?, , 1, , 6, , 119, , 2, , Define : Root hair, , 1, , 6, , 119

Page 31 : 3, , What is meant by Gravitational water?, , 1, , 6, , 120, , 4, , What is meant by Hygroscopic water?, , 1, , 6, , 120, , 5, , What is meant by Combined water?, , 1, , 6, , 120, , 6, , What is meant by Capillary water?, , 1, , 6, , 120, , 7, , What is the composition of outer layer of, root hair?, , 1, , 6, , 120, , 8, , What is the composition of inner layer of, root hair, , 1, , 6, , 120, , 9, , From which type of cells, root hair is, originated, , 1, , 6, , 120, , 10, , Which type of tissue is present in, epiphytic roots?, , 1, , 6, , 119, , 2 marks, 1, , Why water is called as ‘Elixir of Life’?, , Correct, explanation- two, points-1 mark, each, , 6, , 119, , 2, , What are the different types of water?, , Any two types- 1, mark each, , 6, , 120, , 3, , Draw a neat and labelled diagram of, “Structure of Root hair”., , Four correct, labels-2 marks, , 6, , 119, , 4, , Explain the structure of root hair., , Four correct, points-2 marks, , 6, , 120, , 5, , In which forms water is available to roots, for absorption?, , Any two forms- 1, mark each, , 6, , 120, , 6, , Explain the different properties of water., , Any two- 2 marks, , 6, , 119, , 3 marks, 1, , Draw a neat and labelled diagram of Root, tip showing root hair zone., , Three correct, labels – 1 mark, each, , 6, , 119, , 2, , Draw a neat and labelled diagram of Root, hair., , Three correct, labels – 1 mark, each, , 6, , 119, , 3, , Write a note on morphological structure of, root., , Three correct, regions of root-1, mark each, , 6, , 119,120, , 4, , How roots can act as a water absorbing, organ?, , Three correct, points- 1 mark, each, , 6, , 119

Page 32 : 4 marks, 1, , Explain the structure of root hair with the, help of neat and labelled diagrams., , Four correct, points- 2 marks, Diagram with two, correct labels-2, marks, , 6, , 119,120

Page 33 : Question, no., , Question, , Marking scheme, , Chapter Page, No., No., , MCQ, 1, , A farmer is fed up of weeds in his Wheat, farm. Which of the following chemicals he, can use to overcome the problem?, , 1, , 7, , 139, , 1, , 7, , 140, , 1, , 7, , 140, , 1, , 7, , 141, , A IBA, B IAA, C NAA, D 2,4 – D, 2, , Gibberellins are synthesised from ______., A Acetic acid, B Mevalonic acid, C Tryptophan, D Ethephon, , 3, , First natural cytokinin was obtained from, ________., A Rice plants, B Tobacco callus, C Maize grains, D Human urine, , Single sentence answers, 1, , Buyers often complain that a particular, fruit merchant uses some chemical to ripen, fruits in his shop., Name the chemical he must be using to do, so., , 2, , Why is ABA known as antitranspirant?, , 1, , 7, , 141, , 3, , Name the tissue that transports hormones, within the plant body?, , 1, , 7, , 139, , 2 marks, 1, , Match the column A with B

Page 34 : A, i) Epinasty of flower, ii) Natural auxin, iii) Flowering in Litchi, iv) Bolting of Beet, , B, a)GA3, b)NAA, c)IAA, d)Ethylene, , ½ marks for each, correct pair = 2, , 141, 7, , 139, 140, 140, , 2, , A gardener wants to give bushy, appearance to plants in our college, campus., i) What should he do to achieve the same?, , 1+ 1=2, , 7, , 139, , ii) Which property of phytohormones he, must be aware of?, , 3 marks, 1, , Write the name of ____, a) First hormone discovered in plants., b) Biological name of fungus from, which Gibberellins were first, isolated., c) The name given to the first, cytokinin by Skoog and Miller., , 139, 1+1+1=3, , 7, 140, , 140, 2, , Write the name of ____, a) Gaseous growth hormone known to, you., b) Standard bio assay method for, auxins., c) Hormone that can overcome the, requirement of vernalization., , 141, 1+1+1=3, , 7, , 142, 140, , 4 marks, 1, , Name the phytohormone related with, the given phenomenon, a), b), c), d), , 2, , Apical dominance, Bolting of Cabbage, Artificial ripening of fruit, Acts as Antitranspirant by closing, stomata, , Write full form ofa) IAA, b) IBA, c) NAA, d) 2,4-D, , 1 mark to each, sub qn =4, , 139, 7, , 140, 141, 141, , 1 mark to each, sub qn =4, , 7, , 139

Page 35 : Question, no., , Marking, , Chapter, , Page, , Scheme, , No., , No., , 1 mark, , 8, , 156, , 1 mark, , 8, , 156, , 1 mark, , 8, , 156, , 1 mark, , 8, , 1 mark, , 8, , 163, , 1 mark, , 8, , 170, , 1 mark, , 8, , 171, , Question, MCQ, , 1, , 2, , 3, , 4, , 5, , 6, , In human respiration, chemical energy is released in, the form of ____., A) Acetyl co-enzyme A, B) ADP, C) ADPH2, D) ATP, Alveoli provide the surface area for exchange of, ________., A) food, B) enzymes, C) gases, D) hormones, The movement of diaphragm, intercostal muscles and, rib cage helps in __________., A) digestion, B) circulation, C) excretion, D) respiration, The volume of air that remains in the lungs after, maximum respiration is __________., A) 1000 to 1100 ml, B) 1100 to 1200 ml, C) 2000 to 3000 ml, D) 5200 to 5800 ml, Find out the example in which due to absence of, respiratory pigment transport of respiratory gases does, not takes place., A) Cockroach, B) Scoliodon, C) Frog, D) Human, Which of the following has thickest wall?, A) Right auricle, B) Right ventricle, C) Left auricle, , 7, , D) Left ventricle, The phase of contraction of heart is termed as _____., A) diastole, B) systole, C) heart beat, D) heart sound

Page 36 : 1 mark, , 8, , 170, , 1 mark, , 8, , 176, , 1 mark, , 8, , 165, , 1 mark, , 8, , 154, , 2, , Name the cartilage which divides the nasal cavity, into right and left nasal chambers., Give the function of epiglottis., , 1 mark, , 8, , 155, , 3, , Define total lung capacity., , 1 mark, , 8, , 158, , 4, , 1 mark, , 8, , 161, , 5, , Sachin shows symptoms of inflammation of the, sinuses and mucous discharge due to viral and, bacterial infection. Identify the disorder., Define haematology., , 1 mark, , 8, , 164, , 6, , Which type of blood flows through pulmonary veins?, , 1 mark, , 8, , 164, , 7, , In between which layers of pericardium, pericardial, fluid is present?, How many molecules of haemoglobin are found in, each erythrocyte?, Identify ‘A’ from the following ECG., , 1 mark, , 8, , 168, , 1 mark, , 8, , 165, , 1 mark, , 8, , 176, , 8, , The free edges of cuspid valves are attached to the, papillary muscles of the heart by fibres are called, ___________., A) chordae tendinae, B) columnae carneae, C) connecting fibres, D) autorhythmic fibres, , 9, , Ventricular depolarization is represented by, __________., A) P wave, B) QRS complex, C) T wave, D) P and T waves, , 10, , The erythropoeitic tissue in adult is mainly found in, ___________., A) kidney, B) liver, C) red bone marrow, D) spleen, Single sentence answer, , 1, , 8, 9

Page 37 : 10, , Identify the pulse point ‘A’ from below given, diagram., , 1 mark, , 8, , 174, , ½ mark each, , 8, , 154, , 1 mark each, , 8, , 158, , 2 points: 1 mark, each, , 8, , 158, , 2 marks, 1, , Fill in the blanks with the help of chart., Respiratory surface/, organ, , Organism, , Habitat, , Coelenterates, , --------- ---------, , Spiders, , --------- ---------, , 2, , Define Bohr effect and Haldane effect., , 3, , Give any two effects of carbon monoxide poisoning., , 4, , Define intracellular transport and extracellular, transport., , 1 mark each, , 8, , 162, , 5, , Name the pigment and enzyme found in erythrocytes?, , 1 mark each, , 8, , 165, , 6, , Draw diagram of conducting system of human heart., Label SA node and bundle of His., , Appropriate, diagram: 1 mark., , 8, , 171, , 2 points: 1mark, each, , 8, , 173, , Each correct, label: ½ mark, 7, , How a portal vein differs from normal vein?, , 3 marks, 1, , Distinguish between inspiration and expiration., , 3 points; 1 mark, each, , 8, , 164, , 2, , Write a note on Hering-Breuer reflex., , 3 points; 1 mark, each, , 8, , 160161, , 3, , Define Hamburger’s phenomenon., , Definition: ½, mark., , 8, , 159, , 8, , 164, , Add a note on it., , Note: 1 mark., 4, , Draw the chart of double circulation and label A, B, C 1 mark. for, and D., chart

Page 38 : Pulmonary, veins, , Lungs, , A, , Hear t, Right, atrium, , Correct label ½, mark. each., , B, Body, , C, , Left, ventricle, , organs, , D, , Dorsal, ao rt a, , Pulmonary, circulation, , Systemic, circulation, , 5, , Write a note on coagulation of blood., , 3 marks, , 6, , Define hypertension. Explain coronary artery disease Definition: 1, and angina pectoris., mark., , 8, , 167, , 8, , 175, , 8, , 172, , 8, , 157, , 8, , 166167, , Explanation: 1, mark each., 7, , Draw diagrammatic representation of cardiac cycle., Explain ventricular systole., , Correct, representation:, 1 mark., Explanation: 2, marks., , 4 marks, 1, , With the help of labelled diagram explain the, exchange of gases between alveolus and capillary., , Appropriate, diagram: 1, mark., Any 2 correct, labels: 1 mark., Explanation: 2, marks, , With the help of chart identify and write the function ½ mark. for, of any four leucocytes., each correct, name, Typ, Name of, Leucocytes, Function, ½ mark. for, e, cell, each correct, function., ------------ ------------, , Granulocytes, , 2, , ------------, , ------------

Page 39 : ------------, , ------------, , ------------, , ------------, , ------------, , Agranulocytes, , ------------, , 3, , Draw labelled diagram of internal structure of human, heart., Label right atrium, mitral valve, left ventricle and, pulmonary semilunar valve., Write a function of Eustachian and tricuspid valve, found in human heart., , Appropriate, diagram: 1, mark., Each correct, label: ½ mark, Function: ½, mark each, , 8, , 170

Page 40 : Questio Question, n no., , Marking, scheme, , Cha, pter, No., , Page, No., , Hydra, , 9, , 182, , ladder, , 9, , 183, , threshhold, , 9, , 186, , -70 millivolts, , 9, , 189, , Duct of, Sylvius, , 9, , 193, , MCQ, 1, , Diffused type of nervous system is seen in, ________., A Hydra, B Planaria, C Cockroach, D Earthworm, , 2, , Planaria shows ___________ type of nervous, system., A nerve net., B ladder, C ganglionated, D brain, , 3, , In order for a stimulus to be effective, the stimulus, must have a minimum intensity called _______, stimulus., A subliminal, B depolarised, C threshhold, D polarised, , 4, , The resting potential of a neuron is _____., A 30 millivolts, B -30 millivolts, C 70 millivolts, D -70 millivolts, , 5, , The third ventricle of brain is connected to the fourth, ventricle of brain through __________., A Foramen of Monro, B Duct of Sylvius, C Metacoel, D Eustachian tube

Page 42 : 1 mark, , 9, , 185, , 3, , What is the covering of nerve fascicule called?, , Endoneurium 9, , 185, , 4, , How electrical synapse differs from chemical, synapse?, , 1 point – 1, mark, , 9, , 187, , 5, , What is the function of red nucleus?, , 1 function – 1 9, mark, , 194, , 6, , Define Saltatory conduction., , Definition – 1 9, mark, , 189, , 7, , Name the hormone secreted by Pars intermedia in, lower vertebrates., , Melanocyte, stimulating, hormone, , 9, , 211, , 8, , Which disease is caused by hyper secretion of, Glucocorticoids?, , Cushing’s, disease, , 9, , 215, , 9, , Which organ acts a temporary endocrine gland in, females?, , Placenta, , 9, , 216, , 10, , Give one role of hormone therapy., , Definition – 1 9, mark, , 217, , 2 marks, 1, , ‘Injury to the medulla oblongata causes sudden, death’ Explain., , 2 points – 2, marks, , 9, , 194, , 2, , Which two hormones are responsible for the, regulation of calcium and phosphorus in the blood?, , Calcitonin, , 9, , 213, , 3, , Describe any two hormones produced by the ovaries, , 2 hormones – 9, 2 marks, , 216, , 4, , Name the glucocorticoid used in treatment of allergy, and why?, , Name – 1, mark, , 9, , 215, , 9, , 211, , parathormone, , Reason – 1, mark, 5, , Which hormone is secreted by Pineal gland? What is, its function?, , Name – 1, mark, Function – 1, mark, , 6, , Sketch and label T.S of Spinal cord., , Labelled, diagram, , 9, , 195, , 7, , Sketch and label V.S of Pituitary gland., , Labelled, diagram, , 9, , 209

Page 43 : 3 marks, 1, , Write a note on meninges of Brain., , 3 points – 3, marks, , 9, , 189, , 2, , Describe any three functions of hypothalamus., , 3 points – 3, marks, , 9, , 193, , 3, , Name three Mixed cranial nerves along with their, numbers., , 3 – 3 marks, , 9, , 196, , 4, , Distinguish between Cerebrum and Cerebellum., , 3 differences, – 3 marks, , 9, , 191,, 194, , 5, , Answer the questions after observing the diagram, given below., , 3 points – 3, marks, , 9, , 208, , 3 points – 3, marks, , 9, , 212, , Give the names of the hormones released by, neurohypophysis., , Hormones - 2 9, mark, , 210, , A boy shows excessive thirst and micturition because, of deficiency of a hormone secreted by, neurohypophysis. Name the disease he is suffering, from., , Disease – 1, mark, , 1) What acts as the first messenger?, 2) Why can’t hormones like catecholamines enter, their target cells through plasma membrane?, 3) Name the mode of hormone action shown in, the diagram., 6, , Complete the table based on disorders caused due to, under secretion or over secretion of Thyroid gland., Secretion, , Adults, , Children, , Hypo, secretion, Hyper, secretion, 7

Page 44 : 4 marks, 1, , Describe the functional areas of Cerebrum., , 4 points -4, marks, , 9, , 192, , 2, , Distinguish between Sympathetic and, parasympathetic nervous system., , 4 points -4, marks, , 9, , 199, , 3, , Describe any four hormones secreted by, Adenohypophysis., , 4 hormones4 marks, , 9, , 210, , 4, , Write a note on the four different kinds of cell in, Pancreas., , 4 cells – 4, marks, , 9, , 215, , 5, , Complete the flowchart of the process of conduction, of nerve impulse., , 4 points -4, marks, , 9, , 189, , Application of stimulus on a resting nerve, Permeability of membrane changes, , positive ions insideaxon increases, , Polarity reverses and depolarisation takes place, Repolarisation - potassium gates open, , Axoplasm becomes negatively charged and ECF, becomes positive again

Page 45 : Question Question, , Marking, , Chapter Page, , no., , scheme, , No., , No., , Immunity acquired after an infection is ________, , 1 mark for, , 10, , Pg., , immunity, , correct, , A. Artificial Acquired, , answer, , MCQ, 1, , 223, , B. Passive, C. Innate, D. Natural Acquired, 2, , Passive immunity is ____________., , 1 mark for, , A. Acquired through natural overt or latent, , correct, , infection, , answer, , 10, , Pg., 223, , B. Acquired through Vaccination, C. Acquired through readymade antibodies, D. Acquired by activating immune system of the, body, 3, , 'Pathogens' are ____________, A. Substances produced against any disease., , 1 mark for, , 10, , correct, , Pg., 228, , answer, B. Chemical substances produced by the host cells, to kill the parasite animal., C. Disease causing organisms., D. Cells which kill the parasites, 4, , Which one of the following diseases is a, , 1 mark for, , communicable?, , correct, , A. Rickets, , answer, , B. Malaria, C. Diabetes, D. Scurvy, , 10, , Pg., 228

Page 46 : 5, , Which one of the following is the most accurate, definition of the term ‘health’?, A. Health is the state of body and mind in a, , 1 mark for, , 10, , correct, , Pg., 221, , answer, , balanced condition., B. Health is the reflection of a smiling face., C. Health is a state of complete physical, mental, and social well-being., D. Health is the symbol of economic prosperity., 6, , AIDS is caused by, , ____________, , A. Fungus, , 1 mark for, , 10, , correct, , Pg., 237, , answer, B. Virus, C. Bacterium, D. Helminth worm, 7, , A person preparing food in an unhygienic place, , 1 mark for, , can be a major source of spread of disease, , correct, , _____________, , answer, , 10, , Pg., 232, , A. Pneumonia, B. Syphilis, C. Typhoid, D. Cancer, 8, , Carcinoma is cancer of ____________ cells., A. Epithelial, , 1 mark for, , 10, , correct, , Pg., 235, , answer, B. Connective tissue, C. Bone, D. Blood, 9, , Inactive gene that can cause cancer is called, , 1 mark for, , ________, , correct, , A. Transposon, B. Proto-oncogene, , answer, , 10, , Pg., 236

Page 47 : C. Tumour promoter gene, D. Tumour suppressor gene, 10, , antiviral proteins released by cells infected by the, , 1 mark for, , virus are called ________, , correct, , 10, , Pg., 222, , answer, , A. histamines, B. interferons, C. pyrogens, D. allergens, Single sentence answers, 1, , Define ‘Health’, as given by WHO., , 1 mark, , 10, , Pg., 221, , 2, , What are Non-communicable diseases?, , 1 mark, , 10, , Pg.228, , 3, , Name the causative pathogen of Ascariasis., , 1 mark, , 10, , Pg.230, , 4, , What is ‘serology’, , 1 mark, , 10, , Pg.226, , 5, , Name the vector of malarial pathogen., , 1 mark, , 10, , Pg., 229, , 6, , What are congenital diseases?, , 1 mark, , 10, , Pg.228, , 7, , Name the vector of pathogen responsible for, , 1 mark, , 10, , Pg., , filariasis., 8, , 232, , When a drug addict is not allowed to take drugs he, , 1 mark, , 10, , shows certain typical symptoms. What are these, , Pg., 242, , symptoms termed as?, 9, , What is ‘Leukemia’?, , 1 mark, , 10, , Pg., 235, , 10, , Define ‘Adolescence’., , 1 mark, , 10, , Pg., 239, , 2 Marks, 1, , Enlist the four types of T- lymphocytes,, , ½ mark for, , responsible for immune response of our body, , each, , 10, , Pg., 224

Page 48 : 2, , 3, , 4, , Enlist any four barriers that contribute to innate, , ½ mark for, , immunity., , each, , Enlist any four therapies used to treat a cancer, , ½ mark for, , patient., , each, , Give any four the symptoms of Ascariasis., , ½ mark for, , 10, , 222, 10, , State the significance of mother’s milk to a new-, , 1 mark for, , born., , correct, , Pg., 236, , 10, , each, 5, , Pg., , Pg., 230, , 10, , Pg.223, , 10, , Pg., , answer, 6, , Enlist any two features of Acquired immunity., , 1 mark for, each, , 222223, , 7, , Sketch and label – Structure of Antibody, , ½ mark for, , 10, , diagram, , Pg., 225, , and 1 ½, marks for, three labels, 3 Marks, 1, , When the ELISA test was conducted on an, , 1 mark, , immune-suppressed person, he tested positive for a, , each, , 10, , Pg., 237, , pathogen., a) Identify the disease the patient is suffering from., b) Name the causative entity., c) Mention the cells of the body that are attacked by, the pathogen., 2, , 3, , 4, , Explain the importance of epithelial surface in, , 1 mark, , innate immunity., , each, , Explain any three causes of substance abuse during 1 mark, adolescence., , each, , Explain the three stages of adolescence., , 1 mark, each, , 10, , Pg., 225, , 10, , Pg., 241, , 10, , Pg., 239

Page 49 : 5, , Give the preventive measures of AIDS, , ½ mark, , 10, , Pg.238, , 10, , Pg., , each, 6, , a) How is a tumor formed in the body?, b) What are the two types of tumor?, , 1 mark, each, , 234, , c) Which of these under goes metastasis?, 7, , Explain the mode of transmission of HIV., , 1 mark, , 10, , each, , Pg., 237, , 4 Marks, 1, , Explain the various types of acquired immunity., , 1 mark, , 10, , each, 2, , Explain the clinical manifestation of AIDS., , 1 mark, , 223, 10, , each, 3, , Explain any four therapies used in treatment of, , 1 mark, , cancer., , each, , Pg., , Pg., 238, , 10, , Pg., 236

Page 51 : B Nostoc, C Plectonema, D Oscillatoria, 7, , Antibiotic Chloromycetin is obtained from, ____________., , 1, , 11, , 261, , 1, , 11, , 259, , A Streptomyces erythreus, B Penicillium chrysogenum, C Streptomyces venezuelae, D Streptomyces griseus, 8, , Indian curd is prepared by inoculating milk with, ___________., A Lactobacillus acidophilus, B Lactobacillus bulgaricus, C Penicillium roquefortii, D Penicillium camembertii, Single sentence answer, , 1, , What is biofortification?, , 1, , 11, , 252, , 2, , Name biofortified wheat variety for high protein, content., , 1, , 11, , 253, , 3, , What is the main function of a fermenter?, , 1, , 11, , 259, , 4, , Name the chamber in which the suspended objects, are filtered and removed during sewage treatment?, , 1, , 11, , 262, , 5, , What is mycorrhiza?, , 1, , 11, , 267, , 6, , Name the tank to which the sewage water is passed, after the preliminary treatment?, , 1, , 11, , 263, , 7, , What are flocs with respect to sewage treatment, , 1, , 11, , 263, , 8, , Small part of activated sludge is passed back into, primary sedimentation tank., , 1, , 11, , 263

Page 52 : If the above statement is correct then rewrite as it is, and in case it is incorrect then reframe it., , 2 marks, 1, , Rearrange the names of tanks used in sewage, treatment as per the flow of procedure., a) settling tank, b) Grit Chamber, c) aeration tanks, d) primary sedimentation tank., , 2, , Give names of two organisations which provide, most commonly used models of biogas plants., , 3, , A young girl is health conscious. Her dietician, advised her to include mushrooms in her diet. What, must be the reason?, , 4, , Match the column A with B and rewrite correct, pairs., A, i., ii., iii., iv., , B, , Atlas 66, Rice, Spinach, bitter gourd, , a)vit A, b) vit C, c)protein, d)Iron, , ½ mark, for each, correct, position, , 11, , 263, , 1+1, , 11, , 264, , Two, points _, 1mark, each, , 11, , 259, , 1/2mark, for each, correct, pair, , 11, , 253, , 5, , Name two bacteria which are responsible for, fermenting dough of idli, dosa., , Two, names_, 1mark, each, , 11, , 259, , 6, , Name two acids produced by using Aspergillus, niger?, , Two, names _, 1mark, each, , 11, , 260, , 7, , Name two amino acids found in fortified Maize, variety?, , Two, names_, 1mark, each, , 11, , 253, , 1 mark for, each, correct, pair, , 11, , 3 marks, 1, , Match the column A with B and rewrite correct, pairs, A, I., II., III., , Mycoherbicides, Bacterial herbicides, Insects as herbicides, , B, a)Cactoblastis, b) Alternaria, c)Xanthomonas, , 265

Page 53 : 2, , State any three benefits of using Biogas., , 1 mark for, each, correct, point, , 11, , 264, , 3, , Write chemical reactions to represent, Methanogenesis., , 1 mark for, each, correct, reaction, , 11, , 264, , 4, , Describe the structure of a biogas plant., , 3points, 1, mark each, , 11, , 264, , 5, , State any three benefits of mycorrhiza., , 1 mark for, each, correct, point, , 11, , 267, , 6, , State any three benefits of Biofertilizers., , 1 mark for, each, correct, point, , 11, , 268, , 7, , Match the column A with B and rewrite correct, pairs., A, B, 1) citric acid, a) in medicine for, solubility of Ca++, 2) fumaric acid, b) confectionary, 3) gluconic acid, c) in resins as wetting, agents, , 1 mark for, each, correct, pair, , 11, , 260, , 4 marks, 1, , Match the column A with B and rewrite correct, pairs., , A, , B, , a)Penicillium roquefortii, , i)Alcohol, , b)Lactobacillus bulgaricus., , ii) Cheese, , c)Lactobacillus acidophilus, , iii) Yoghurt, , d)Saccharomyces cerevisiae, , iv)curd, , 1 mark for, each, correct, pair, , 11, , 259

Page 54 : 2, , Explain the process of sewage water treatment, before it can be discharged into natural bodies., , 3, , Match the column A with B and rewrite correct, pairs., , A, i., ii., iii., iv., , B, , Symbiotic N2 fixing bacteria, Free-living N2 fixing bacteria, Phosphate solubilizer, Endomycorrhizae, , a) VAM, b)Rhizobium, c) Nostoc, d) Microccocus, , ., , 2points =, 1 mark for, each step., 4steps = 4, mark, , 11, , 262263, , 1 mark for, each, correct, pair, , 11, , 266

Page 55 : Question, no., , Question, , Marking, scheme, , Chapter Page, No., No., , MCQ, 1, , The technique which involves addition or, deletion of genes is…., , 1, , 12, , 273, , 1, , 12, , 275, , 1, , 12, , 275, , 1, , 12, , 277, , 1, , 12, , 274, , 1, , 12, , 283, , A genetic engineering, B gene therapy, C gene splicing, D gene piracy, 2, , ECoRI is obtained from…, A Escherichia coli R13, B Escherichia coli Ry13, C Escherichia coli R225, D Escherichia coli RC, , 3, , The enzyme restriction endonuclease …, A cuts double strand of DNA, B joins strand of DNA, C cuts RNA strand, D cuts single stranded DNA, , 4, , Ti plasmid being used for introducing genes in, plants obtained from…., A Agrobacterium rhizogenes, B Escherichia coli, C Agrobacterium T20, D Agrobacterium tumefaciens, Polymerase chain reaction is most useful in…., A DNA amplification, B DNA synthesis, C protein synthesis, D selective replication of DNA, , 5, , In Bt cotton a transgenic plant, Bt refers to…., A bold cotton, B Bacillus thuringiensis

Page 56 : C beta carotene, D tumor inducing bacteria, 7, , In transgenic crop substance provitamin A is, obtained in…., , 1, , 12, , 283, , 1, , 12, , 280, , 1, , 12, , 282, , 1, , 12, , 289, , A rice, B tomato, C canola, D sugarcane, 8, , In Anaemia the Recombinant protein….is, produced by r-DNA technology., A Relasein, B Insulin, C Erythroprotein, D Antoitrpsin, , 9, , In biotechnology GMO refers to…., A generation mediated organisms, B genetically modified organisms, C good modified organisms, D gross modified organisms, , 10, , First biopatent to genetically engineered, bacterium…., A Pseudomonas, B Agrobacterium, C Azatobacter, D E. coli., Single sentence answers, , 1, , In which transgenic plant the substance, Flavonoids obtained as antioxidants., , 1, , 12, , 283, , 2, , What is Germline therapy?, , 1, , 12, , 282, , 3, , Which Recombinant proteins is obtained for, Hepatitis-B by r-DNA technology., , 1, , 12, , 280, , 4, , What is plasmid?, , 1, , 12, , 277, , 5, , What is Palindromic sequence?, , 1, , 12, , 276, , 6, , Alu-I is obtained from which organism?, , 1, , 12, , 275

Page 57 : 7, , What is the role of Taq-polymerase in PCR, technology?, , 1, , 12, , 274, , 8, , Bt-cotton shows adverse effect on the population, of which butterfly?, , 1, , 12, , 288, , Definition1 mark, , 12, , 290, , 2 marks, 1, , What is Biopiracy? Explain it with respect to, Turmeric., , Two correct, points-1, mark, 2, , How Biotechnology is applicable with respect to, Genomics?, , Any two, correct, points-2, marks, , 12, , 279, , 3, , Explain how transgenic fish is commercially, beneficial., , Any two, correct, points-2, marks, , 12, , 287, , 4, , Write any two human disorders and to cure, which recombinant proteins are produced?, , Two points1 mark each, , 12, , 280, , 5, , For production of edible vaccines plants are used., Correct, Explain this any one example., explanation1 mark, , 12, , 285, , Example-1, mark, 6, , Write a note on uses of somatic cell gene, therapy., , Any two, applications1 mark each, , 12, , 282, , 7, , Define vector? write any two examples,, , Definition 1 mark, , 12, , 277, , Three, correct, points-1 m, ark each, , 12, , 272, , Definition-1, mark, , 12, , 272, , Two, examples1/2 mark, each., 3 marks, 1, , Explain traditional use of Biotechnology., , 2, , Define biotechnology? Which are the basic, principles and process of biotechnology?

Page 58 : Basic, process and, principles-2, marks, 3, , What is gene cloning? Explain different tools, used for it., , Definition-1, mark, , 12, , 273, , Any two, types of, tools-1 mark, each, 4, , Explain types of enzymes used in biotechnology?, , Three, correct, points, function of, enzyme-1, mark, , 12, , 275, , 5, , What is Recognition sequence? Explain in brief., , Definition-1, mark, , 12, , 275, , 12, , 280, , 12, , 283, , 12, , 274, , 12, , 277, , Explanationtwo correct, points2marks, 6, , Define Biotechnology? How it is used in, production of Human insulin., , Definition 1, mark, Two correct, points in, production, process- 1, mark each, , 7, , What is GM plant? Write its different, advantages., , Definition-1, mark, Any two, advantages2 marks, , 4 marks, 1, , What is PCR? Explain different steps involved in, it., , Definition-1, mark, Three step1 mark each, , 2, , Explain the following terms with respect to rDNA Each term-1, technology, mark, i) passanger DNA

Page 59 : ii) Chimeric DNA, iii) Transformed cell, iv) restriction site, 3, , Define biotechnology. Give any three application, of it?, , Definition-1, mark, , 12, , 279, , Any three, application1 mark each, 4, , Which are different adverse effect of, Any four, biotechnology on human health and environment? points- 1, mark each, , 12, , 288, , 5, , Explain biopatent and Biopiracy with different, examples?, , 12, , 289, , Correct, explanationtwo points2 marks, each

Page 60 : Question, no., , Question, , Marking, scheme, , Chapter, No., , Page, No., , 1, , 13, , 293, , 1, , 13, , 293, , 1, , 13, , 293, , 1, , 13, , 293, , 1, , 13, , 305, , MCQ, 1, , An association of individuals of different, species living in the same habitat and having, functional interactions is called as…, A biotic community., B population., C ecosystem., D tropical niche., , 2, , Community is defined as…., A Group of similar Angiosperms., B interacting populations., C interacting ecosystem, D group of mangroves., , 3, , Regional and local variations within each, biome lead to the formation of variety of…, A Habitats, B niches, C species, D genus, , 4, , Maximum absorption of rainfall water is done, by…., A tropical evergreen forest., B tropical deciduous forest., C coniferous forest., D deserts, , 5, , The cattle egret and grazing cattle in close, association is a classic example of…, A Mutualism., B Parasitism., C Commensalism., D Competition

Page 61 : 6, , The ecological niche of population is a …, , 1, , 13, , 294, , 1, , 13, , 295, , 1, , 13, , 297, , 1, , 13, , 300, , 1, , 13, , 298, , A geographical area where it lives., B set of conditions and resources that it, uses., C habitat of organisms, D place of origin of organisms, 7, , Tropical dense forests are due to…, A high rainfall and low temperature, B high rainfall and warm temperature, C low rainfall and high temperature, D low rainfall and low temperature, , 8, , Polar bears show hibernation during…, A winter, B summer, C rainy season, D favourable conditions, , 9, , In Logistic growth curve lag phase shows…, A fast growth, B initial stage of growth, C stationary phase of growth, D diminishing phase of growth, , 10, , The number of deaths under ideal conditions, is known as, A Absolute mortality, B Realized mortality, C Absolute natality, D Realized natality, Single sentence answers, , 1, , Define Absolute Mortality., , 1, , 13, , 298, , 2, , How absolute Natality differs from Realized, Natality., , 1, , 13, , 298, , 3, , What is population ecology?, , 1, , 13, , 298, , 4, , Define the term spatial niche., , 1, , 13, , 295

Page 62 : 5, , What is ESS?, , 1, , 13, , 298, , 6, , Define the term Habitat., , 1, , 13, , 294, , 7, , Rearrange the terms population, Biome,, Community and Organisms in ecological, hierarchy, , 1, , 13, , 293, , 8, , What Allen’s rule indicates in adaptation?, , 1, , 13, , 297, , Any two, , 13, , 293, , 1 mark each, , 13, , 293, , 2 marks, 1, , Show the graphical representation of mean, annual rainfall with respect to mean annual, temperature., , correct, representations1 mark each, , 2, , Define the term Biome and population., , 3, , How Habitat differs from Niche?, , Any two, correct points1mark each, , 13, , 294, , 4, , How ‘Temperature’ as an abiotic factor plays, a role in ecology?, , Any two, correct points1 mark each, , 13, , 295, , 5, , Define the term Adaptation. State its two, advantages., , Definition- 1, mark, , 13, , 297, , 13, , 298, , 13, , 301, , 13, , 295, , 13, , 302, , Any two, advantages-1/2, mark each, 6, , What is Mortality? What are its two types?, , Definition- 1, mark, Each type-1/2, mark, , 7, , Define the term population interactions. State, its two types, , Definition- 1, mark, Each type-1/2, mark, , 3 marks, 1, , Define Niche with its different types., , Definition –, 1mark, Any two types, -1 mark each, , 2, , Define mutualism. Explain its one type., , Definition -1, mark

Page 63 : Correct, example and, explanation-2, marks, 3, , Explain any three important characteristics of, population., , Three correct, characters- 1, mark each, , 13, , 297, , 4, , Explain different population interactions with, examples., , Any three, types- 1 mark, each, , 13, , 301, , 5, , What is Commensalism? Explain it with, suitable example., , Definition- 1, mark, , 13, , 304, , Correct, explanation and, example-2, marks, 6, , Explain the role of any three abiotic factors, affecting the environment., , Three factor5s, with correct, explanation- 1, mark each, , 13, , 295, , 7, , Explain different types of growth models., , Two types – 1, and ½ mark, each, , 13, , 300, , Definition – 1, mark, , 13, , 299, , 4 marks, 1, , Define population growth. Explain different, types of age pyramids., , Any three, pyramids- 1, mark each, 2, , Which are different biotic and abiotic factors, involved in ecology and how they play their, role?, , Any two biotic, and abiotic, factors with, correct, explanation- 2, marks each, , 13, , 294, , 3, , What is population interaction? Explain the, interactions in Mutualism and Competition., , Definition -1, mark, , 13, , 302, , Mutualism and, commensalism, correct, explanation-1, and ½ mark, each

Page 64 : Question Question, no., , Marking, scheme, , Chapter, No., , Page, No., , 1 mark, , 14, , Pg., 317, , 1 mark, , 14, , Pg., 319, , MCQ, 1, , Lichens taking roots on bare rocks are an example, of ___________., A. climax community, B. pioneer species, C. climax species, D. secondary succession, , 2, , Growth of new grasses and shrubs on a patch of, forest burnt down by forest fire, is a an example of, , Fig., 14.14, , __________, A. secondary succession, B. pioneer species, C. climax species, D. primary succession, 3, , All types of ecological succession whether on, , 1 mark, , 14, , Pg., 318, , 1 mark, , 14, , Pg., , land or in water always reaches __________, A. climax community, B. pioneer species, C. climax species, D. secondary succession, Single sentence answers, 1, , What is ‘Sere’?, , 316, 2, , Define ‘Ecological succession’, , 1 mark, , 14, , Pg., 316, , 3, , What is ‘Climax community’?, , 1 mark, , 14, , Pg., 317

Page 65 : 2 Marks, 1, , 2, , Name the types of succession of plants based on, the nature of habitat., , 1 mark, each, , 14, , Give reasons – ‘Primary succession is always, slower than secondary succession’, , 1 mark, each, , 14, , Pg., 317, Pg., 317, , 3 Marks, 1, , What are ‘pioneer species’? Give two examples of, them., , 1 mark, each, , 14, , Pg., 317, , 2, , Explain the following sequence of succession after, a forest fire., , 1 mark, each, , 14, , Pg., 317, , 1 mark, each, , 14, , Pg., 317, , Answer the following – 4 Marks, 1, , Explain the progress of ecological succession in, newly formed volcanic island.

Page 66 : Question Question, no., , Marking, scheme, , Chapter, No., , Page, No., , MCQ, 1, , Dodo bird, stellar sea cow and passenger pigeon, are few examples of extinction due to, __________., , 1, , 15, , 326, , 1, , 15, , 328, , 1, , 15, , 325, , A habitat loss, B hunting, C Alien species invasion, D overexploitation., 2, , Select the odd example with respect to types of, conservation strategies., A Pawra tribals in Satpuda have protected, varieties of corn with different coloured kernels., B Kanha forest as tiger reserve., C Crocodile bank of Chennai, D Sacred groves, , 3, , India boasts a handsome share of ____ % of total, biodiversity wealth of the earth., A 2.4, B 8.1, C 14, D 22, Single sentence answers, , 1, , What is ‘Hello Forest’?, , 1, , 15, , 341, , 2, , Name the Japanese method of plantation adapted, by our government., , 1, , 15, , 341, , 3, , A medicinal plant Rauwolfia vomitoria shows, variations in concentration of reserpine from, location to location. What type of level of, biodiversity is this?, , 1, , 15, , 322, , 1+1, , 15, , 326, , 2 marks, 1, , Write full form of __, i), ii), , IUCN, NBA

Page 67 : 330, 2, , 3, , Give any four factors that favour high speciation, at lower altitudes., , ½ mark, each =2, , With the help of any one example explain Alien, species invasion as one of the causes of, Biodiversity losses., , Meaning, 1mark+exa, , 15, , 323, , 15, , 326, , 1 mark, , 3 marks, 1, , Enlist any six categories into which a given, species is placed once it has been thoroughly, evaluated by IUCN., , 1/2mark, each =3, , 15, , 327, , 2, , The reasons for conservation of biodiversity can, be classified into three categories. Name them and, describe each in brief., , ½ mark, name+1/2, mark, describe, , 15, , 328, , 1mark, each, , 15, , 341, , 4 marks, 1, +, , Describe any four measures to achieve Mission, Harit Maharashtra