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KUMAR CLASSES, , , , , , , , , , . The prebiotic atmosphere of the earth was, a) Aerobic b) Anaerobic, ¢) Partially aerobic d) without any gas, , Find the add one, , a) Slanting forehead, , b) Prothgnous face, , c) Presence of distema, d) Cranial capacity 1450, , . The transition state between two organisms is,, a) change link b) connecting link, ¢) organic link d) all of these, , . Single condyle of archaeopterix is a —---character., , a) reptilian b) avian, , ¢) both d) none of these, , Ribs with single head is a ----- character., a) reptilian b) avian, c) both d) none of these, , . Jaw with homodent tecth is a character,, , a) reptilian b) avian, ¢) both d) none of these, , . Amber is a type of, a) rock b) soil, ¢c) fossil d) bone, , . Darwins finches is an example of, a) reproductive isolation, , b) genetic drift, , ¢) fossils, , d) vestigial organs, , . What is the age of Pleistocene epoch, a) 29 mya b) 20 mya, c) 02 mya d) 0.02 mya, , . Extinction on primitive amphibians is about --— mya., a) 350 b) 165, ¢) 225 d) 280, , . Toothed birds extinction about, a) 350 b) 165, ¢) 225 d) 280, , COMBINE TEST BIOLOGY, , , , , , , , , , , , 12. Synthesis of RNA on DNA strand is called:, a) Transformation b) Transcription, c) Transduction d) Translation, , 3. Arrangement of three successive bases in, genetic code signifies, a) Protein b) Amino acid, c) Nucleic acid d) Plasmid, , . DNA template sequence of CTGATAGC, transcribed as mRNA :, a) AUCTUTCG b) GACUA, c) GAUTATUG d) UCTATCU, , . Experimental evidence supporting concept, triple genetic code was first provided by, a) Beadle and Tatum, b) waston, c) Crick, d) Michaelis and Menten, , . Enzyme needed for production of DNA from, RNA is, a) RNA Polymerase, b) Reverse transcriptase, c) DNA helicase, d) DNA polymerase, , . Polyribosomes are found when ribosomes are, connected by, a) rRNA b) mRNA, c) tRNA d) All the above, , . Site for protein synthesis is, a) Nucleus b) Cytosol, c) Ribosome d) Lysosome, , . In eukaryote, which one carries genetic, message to ribosomes?, a) (RNA b) rRNA, c) mRNA d) HaRNA, , |. Which one cannot be synthesized from DNA, directly?, a) MRNA b) tRNA, c) rRNA d) Protein

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. Enzyme catalyzing peptide formation is, located in:, a) Smaller subunit of ribosome, b) Larger subunit of ribosome, c) Central part of (RNA, d) None of the above, , . Synthesis of RNA on DNA strand is called:, a) Transformation b) Transcription, c) Transduction d) Translation, , 23. Arrangement of three successive bases in, , genetic code signifies, a) Protein b) Amino acid, ¢) Nucleic acid d) Plasmid, , . DNA template sequence of CTGATAGC, transcribed as mRNA :, a) AUCTUTCG by) GACUA, c) GAUTATUG d) UCTATCU, , . In split genes, the non coding sequences are, called, a) Exons b) Introns, ¢) Cistrons d) Operons, , 26. Experimental evidence supporting concept, , triple genetic code was first provided by, a) Beadle and Tatum, , b) waston, , c) Crick, , d) Michaelis and Menten, , . Enzyme needed for production of DNA from, RNA is, a) RNA Polymerase, b) Reverse transcriptase, c) DNA helicase, d) DNA polymerase, , . Polyribosomes are found when ribosomes are, connected by, a) rRNA b) mRNA, ce) tRNA d) All the above, , . Site for protein synthesis is, a) Nucleus b) Cytosol, c) Rihosome d) Lysosome, , , In eukaryote, which one carries genetic, message to ribosomes?, a) (RNA b) rRNA, c)mRNA d) HnRNA, , , , . Which one cannot be synthesized from DNA, , directly?, a) MRNA b) tRNA, c) tRNA d) Protein, , . Enzyme catalyzing peptide formation is, , located in:, a) Smaller subunit of ribosome, b) Larger subunit of ribosome, c) Central part of (RNA, d) None of the above, cell is larger and vacuolated, a) Generative cell b) Reproductive cell, c) Vegetative cell d) Egg, , . In angiosperms, meiosis occurs when, , a) Seeds are formed, formed, , c) pollen grains are formed, d) Endosperm is formed, , b) flowers are, , . The genesious part of stamen is, , a) Filament h) Connective, c) Anther d) Stigma, , . Most common type of anther in angiosperm is, , a) Monothecous —b) Dithecous, c) Trithecous d) Tetrathecous, , . Dithecous anther is, , b) Bilocular, d) Tetralocular, , a) Unilocular, c) Trilocular, , . The unisexual female flower is called, , a) Staminate flower b) Pistillate flower, c) Hamothallic Mower d) Monoecious, , . The part of carpel which serves as a receptive, structure for the pollen is called ;, a) Ovule b) Style, c) Stigma d) Ovary, , 40. Anthesis is, , a) Removal of anther b) Removal of, pollen gains, , c) Dehiscence of fruit d) Opening of, flowers, , . Pollen grains develops from ........ of anther, , a) epidermis b) endothecium, c) tapetum d) sporogenous tissue

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42. Sexual reproduction leads to, a) Parthenocarpy b) Recombination, c) Apomixis d) parthenogenesis, , 43. A stalk of flower is, a) Petiole b) Pedicel, c) Funicle d) Peduncle, 44 In the given diagram | and II indicate, , I, , I, a) Chromomere and chromonemata, b) Centromere and secondary constriction, c) Secondary constriction and satellite, d) Telomere and satellite, , 45. A part of chromosome beyond the nuclear, organizer is short and spherical part of a, chromosome is called as, , a) Telomere b) Satellite, , c) Chromomere d) Spindle fibre, , 46. Chromosomes are classified into different, types according to the position of, a) Telomere b) Centromere, c) Satellite d) Constriction, , 47. Number of linkage group on Klinfelter’s, human somatic cell, , a) 11 pairs b) 22 pairs, , c) 23 pairs d) 24 pairs, , 48. In human female garnet ovum is, a) Haploid (2n) b) Diploid (2n), c) Haploid (n) d) Triploid, , 49. Choose wrong statement of following in case, of human, a) All ova are with same genetic makeup, b) Two types of sperms are produced by, makeup, c) All sperms are with same genetic makeup, d) All ova are with same number of, chromosomes, , , , 50. In birds which parent is responsible for, determination of sex of offspring, , a) Heterogametic male, , b) Homogametic male, , c) Heterogametic female, , d) Homogametic female