Synaptonemal complex is more conspicious at:
(1) Zygotene
(2) Pachytene
(3) Diplotene
(4) Leptotene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCentrosomes are:
(1) Constricted regions of chromosomes
(2) Regions where microtubules polymerise
(3) Part of Cilia
(4) The central part of the same cell
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCellular structures which disappear during late prophase and reappear during telophase are:
(1) Mitochondria and spindle fibres
(2) Plasma membrane
(3) Nuclear membrane and nucleolus
(4) Plastid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven:
1. Chromatid 2. Monad
3. Dyad 4. Daughter chromosome
The correct sequence in cell division is:
(a) 1, 2, 3, 4 (b) 2, 3, 1, 4 (c) 3, 2, 1, 4 (d) 4, 3, 2, 1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCytokinesis in animal cell takes place by _______; in _______ direction while in plant cell by _______; in _______ direction:
(1) Furrowing, centrifugal, cell plate, centripetal
(2) Furrowing, centripetal, cell plate, Centrifugal
(3) Cell plate, centrifugal, furrowing, centripetal
(4) Cell plate, centripetal, furrowing, centrifugal
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLiquid endosperm in coconut is resulted due to:
(1) Karyokinesis followed by cytokinesis
(2) Failure of karyokinesis followed by cytokinesis
(3) Karyokinesis twice followed by single cytokinesis
(4) Karyokinesis is not followed by cytokinesis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLabel the structure indicated by lines (i), (ii), (iii) and (iv):
(1) (i) - Chromatid, (ii) Centriole, (iii) Centromere, (iv) Chromosome
(2) (i) - Chromomosome, (ii) Centriole, (iii) Centromere, (iv) Chromatid
(3) (i) - Chromatid, (ii) Centromere, (iii) Centriole, (iv) Chromosome
(4) (i) - Chromomosome, (ii) Centromere, (iii) Centriole, (iv) Chromatid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe members of a homologous pair of chromosomes:
(1) Are identical in size and appearance
(2) Contain identical genetic information
(3) Separate to opposite poles of the cell during mitosis
(4) Are found only in haploid cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOne difference between mitosis and meiosis I is that:
(1) Homologous chromosome pairs synapse during mitosis
(2) Chromosome do not replicate in the interphase preceding meiosis
(3) Homologous chromosomes pairs synapse during meiosis but not mitosis
(4) Spindle composed of microtubules are not required during meiosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChromosome number is reduced during meiosis because the process consists of:
(1) Two cell divisions without any chromosome replication
(2) A single cell division without any chromosome replication
(3) Two cell divisions in which half of the chromosomes are destroyed
(4) Two cell divisions and only a single round of chromosome replication
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology