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QUESTION BANK (MCQ Based), Cell Cycle, Cell Division and Structure, of Chromosomes, , Nae!, IMPORTANT POINTS, , , , , , , , , , , , , , ur stages of each cell division (1) prophase, (11) metaphase. (iii) anaphase and (iv) telor, Mitosis is also known as equational division since the number of chromosomes:and: DNA. in daughte, ells are equal to parent «, Meiosis is also known as reduction division since the four daughter cells bear half the number of, hromosomes that of the mother cell, The two divisions of meiosis may be summed up, 2) Meiosis I : reductional division or heterotypic: divisior, ) Meiosis II : equational division or homotypic divisio:, Growth is an increase in size or mass of a developing or living system, ule fibres radiating out from each pole of a cell during cell divisior, , , , Aster is a bundle of micro‘, , Bivalent refers toa pair of homologous chromosomes when they pair up during meiosis, , Tetrad is the group of four sister chromatids inside the homologous chromosome pair, , « Centrioles are two self-replicating, cylindrical collection of microtubules in the cytoplasm near th, nucleus of animal cells which organise spindle fibres for cell division, Chiasma refers to that area where crossing over has taken place during prophase of meiosis |, , s During the S-phase or synthetic phase of interphase, replication of DNA and synthesis of histone, , proteins occurs,, During prophase, the formation of the spindle or mitotie apparatus occurs which is the most, , conspicuouis-change®in the cytoplasm, © The first sign of cleavage in animal cells is puckering and furrowing of the plasma membrane, , Crossing over is the mechanism of recombination of the genes due to interchange of chromosomal, , Segmentsatthe time of pairing., e Chromosomes: are small. thick, rod-like structures found in the nucleus of each cell., © The long, thin, dark stained fibres inside the nucleus are called chromatin fibres., , e Chromosomes are made up of DNA and histones., © One nucleosome consists of eight histone proteins with DNA strand., ® In diploid cells, there*are two kinds of chromosomes-Autosomes and Sex- chromosomes., , © In human beings:each cell contains 23 pairs of chromosomes., , ® 23id pair of chromosomes: in human is called sex-chromosomes., CRATES Biology-10 Question Bank with MTP for First Semester Examination a
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QUESTION BAN KUM c, , - Seiieeesmecel, Uitte uml ne, e is the entire sequence of events happening in a cell as it grows and divides., , mitosis = ‘i, or somatic cell division and meiosis or reproductive cell division,, , , , , , , ide by two types :, is a type of cell division that does not involve nuclear changes., aryokinesis or division of nucleus and cytokinesis or division, , ion has two phases : k, , , , Amitosis, , , , Every cell div, , of cytoplasm., Mitosis and meiosis have varied features., The four stages of each cell division are (i) prophase, (ii) metaphase, (iii) anaphase and (iv) telophase:, , oornen i., Mitosis is also known as equational division since the number of chromosomes and DNA in daughter, , cells are equal to parent cell., Meiosis is also known as reduction division since the four daughter cells bear half the number of, , : chromosomes that of the mother ceil., , The two divisions of meiosis may be summed up as :, (a) Meiosis I : reductional division or heterotypic division., (b) Meiosis II : equational division or homotypic division., , b, e Growth is an increase in size or mass of a developing or living system., Aster is a bundle of microtubule fibres radiating out from each pole of a cell during cell division., , J A, Bivalent refers to a pair of homologous chromosomes when they pair up during meiosis, e Tetrad is the group of four sister chromatids inside the homologous chromosome pair., , Centrioles are two self-replicating, cylindrical collection of microtubules.in the cytoplasm near the, , ° rioles., nucleus of animal cells which organise spindle fibres for cell division., Chiasma refers to that area where crossing over has taken place during prophase of meiosis |, , e a, During the S-phase or synthetic phase of interphase, replication of DNA and synthesis of histone, , proteins occurs. :, prophase, the formation of the spindle or mitotie apparatus occurs which is the most, , e During ;, conspicuous change in the cytoplasm., , e The first sign of | cleavage in animal cells is puckering and furrowing of the plasma membrane., ° Crossing over i is the mechanism of recombination of the genes due to interchange of chromosomal, — = time of pairing., , mes‘are’small, thick, rod-like structures found in the nucleus of each cell., , dark stained fibres inside the nucleus are called chromatin fibres, , , , , , , , , , , sare made up of DNA and histones., consists of eight histone proteins with DNA strand., there are two kinds of chromosomes - Autosomes and Sex- chromosomes., , ings-each cell contains 23 pairs of chromosomes., hromosomes’in human is called sex-chromosomes., , ) Question Bank with MTP for First Semester Examination
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following que, , , , , , , , 1ase, metaphase, anaphase and telophase, : and telophase, (B) Prophase, anaphase, metaphase and telop, {etaphase, anaphase, prophase and telophas, )) Telophase, anaphase, prophase, metaphase, 4, Which of the following are called equational division, = (B) Mitosis and Meiosis, Mitosis and Meios, (D) Meiosis | only, , ct sequence of phases in’ interphase is, , (B) S,G,andG, , , , G,, G, and S, , , , , , , , (C) G,, Sand, 6 chromosomes appear to be V and L-shaped in, 4) Anaphase (B) Metaphase (C) Telophase, 7. After mitotic cell division, a human female’ cell will have, (B) 44 +xy chromosome, , (A) 44 +xx chromosom:, (D) 22 + xx chromosome, , , , x chromosome, of DNA molecule in chromatin fibres is, , (C), , , , , , 8. The percentag, , , , , , , , (A) 60% (B) 5 (C) 4, 9. Name the phase which comes before mitotic phase, , (A) G, phase (B) S phase (C) G, phase (D) M, 10. The number of daughter cells formed from a parent cell at the end of the-meiosis, , (A) 1 (B) 2 (C) 4 (D), 11. The basis of genetic variation in organisms during meiosis occurs: due to, , (A) crossing over (B) cytokinesis, , (C) plate formation (D) aster formation, 2. The daughter ce \, 12. The daughter cells are genetically different from parent cell in, , (Ayineiosis (B) mitosis (C) amitosis (D) cl, 13. Rod shaped chromosome, having centromere at the proximal end is called, , (A) telocentric (B) acrocer, , aS ) acrocentric, , (C) metacentric, , ¢ (D) submetacentric, , 14. In human male, number of autosomes is, , (A) | pair, , (B) 21 pairs (Cy 22 pairs (D, , ; a oes., Goyal's ICSE Biology-10 Question Bank with MP for First
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10s B) nitrogenous ba:, the phase which comes after mitotic ph, (AyG, phase B) Spi, , § phase represents, , 4) synthesis (B) gor, , (C) nucleoside ), , (C) division, , >) resting, , if Piiandiauchromesome:, g,A cell has 12 chromosomes, After mitotic division the daughter cell will have, , A) 24 chromesomes, , (C) 18 chromesomes, , (B) 6 chrom, (Dy, , somes, , , , chromosomes, , 19. The points where two non-sister chromatids. crossover are called, , (A) Chromatid (B) Centromere, , 20. The shortest phase of mitosis is, , (A) Anaphase (B) Metaphase, , (A) centriole (B) chromatin fibres, , (C)Chiasmata, , (C) Telophase, , (C) chromatid, , (D) Kinetochore, , (D) Prophase, , . The genetic material in the form of long, thick and dark stain is called, , (D) chromosomes, , 22. Pentose sugar. phosphate: and nitrogenous base together form, , (A) chromatids (B) nucleotide, , . ‘Three hydrogen bonds are present between, , , , (A) Guanine and cytosine, (C) Adenine and Guanine, 24, In RNA, thymine is replaced by, (A) Adenine (B) Cytosine, . The physical carriers of heredity are, (A) Nuclei (B),Chromosomes, 26. Sperms and eggs are considered as, (A) Germ cells (B) somatic cells, , bs, ov, , , , (C) nucleoside, , (C) Uracil, , (C) Cells, , (D) centromere, , (B) Adenine and thymine, (D) Cytosine and thymine, , (D) Guanine, , (D) Mitochondria, , (C) gametes (D) None, , 27. The cell component which is visible during cell division only is, , (A) Golgi body (B) mitochondrion, Which of the following is reduction division?, (A) Meiosis | (B) Meiosis Il, 29. Centrifugal type of cytokinesis is seen in, (A) Both plant and animal cells, (© Plant cells, 30, Chromatin fibres are made up of, (A) DNA, (C) histone proteins, 31, The detailed structure of DNA was given by, (A) Waldeyer, (C) Watson and Crick, 32, Two hydrogen bonds are present between, (A) Gtignine and cytosine, , denine and Guanine, , 3% ur of chromosomes is called, (B)_ sex chromosomes, , 28), , , , , , ology, 10 Question Bank with MTP for First Semester-Examination, , (C) chromosome (D) lysosome, , (C) Mitosis (D) Amitosis, , (B) Animal cells, (D) Bacterial cell, , (By histone proteins:and DNA., (D) RNA, , (B) Balbiani, (D) Mendel, , (B) Adenine:and thymine, (D) Thymine and cytosine, , (C) heterosomes (D) nullisomes
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se, , , , perm cells i, The li of 3 oo, «©, (B) 120 days, hi is correct out of the following a, De (ancy Jeus = protoplasm (B) Nucleus + protop, ) Cytoplasm = Nucleus = protopia one, c fi Nucleus = protoplasm (D) Cell membrane = proto, Cytoplasm + Nucleus = protopla s, sa plate formation durir, , je thi s et ell, , 47) Name the cell organelle which is actively involved in, , ; 3 Ss ysosome (, (B) Golgi bodies «c), , , , , , 38. Sex chromosomes of human being are found in Pe, (Ay 3" pair (B) 22™ pair (G)-23" pair, centage of DNA and histones are, 39. In a chromatin fibre, the percentage of DN/ Dee, @ 50 and 50 respectively (BY 40-and 60 respectively, (c) 60 a d 40 . ectively (D) 30.and 70 respectively, : e| dently. They a, 40. Semi autonomous organelies can replicate and. reproduce independen fe, (A) ER and Mitochondria (B) Mitochondria and Ribosom«, (D) Chloroplast and Lysosomes, , (€) Mitochondria and Chloroplast, , , , , , , , 41. Which of the following takes part in cell division? ieee, (A) Ribosome (B) Nucleus (C) Dictyosome @)V, 42. Observe the diagram. Identify the type of chromosome., z, {, \ }, (A) Acrocentric (B) Metacentric (C) Submetacentric (D) Telo, 43, At the end of the mitotic cell division, a male human cell have, (A) 22+X chromosomes hromosomes, (C) 44+XX chromosomes chromosomes, 44. A nucleotide is composed of, (A) Pentose sugar and phosphate, (B) Ribose sugar and nitrogenous base, (©) Nucleoside and pentose sugar, (Dy Pentose sugar, nitrogenous base and phosphate, 45, Chemically, a gene is, (A) Half part of the chromosome (B) Only euchromatin part of'a chromosom, (C)-A linear segment of DNA (D) All of these, 46. DNA replication occurs during, (A) M-phase (B) G, phase (C) G, phase (Dy'S phase, 47. Which of the following organelle has the role to initiate and regulate:cell:division in animal, . AS) ous (B) Centrosome (C) Golgi bodies (D) Lysosom«, | 48. In which of the following part of the chromosome, DNA does not exist'in'the form of nucieosoni, : ) te DNA (B)-DNA of centromere, (C) Heterochromatin DNA (D) Satellite DNA, , Goyal's ICSE Biolo;, , , , (0 Question Bank with MTP for First Semester
