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In a diploid cell, chromosomes of a pair are similar in form, size and structure. Select the incorrect statements w.r.t. these chromosomes.
(a)These chromosomes are also called homologous chromosome.
(b)During meiosis, these chromosomes separate from each other.
(c)They form monovalent during zygotene stage.
(d)Pairing of these chromosomes is called synapsis.

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Important Questions on Cell Cycle and Cell Division
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In metaphase II of meiosis
A. The univalent chromosomes align themselves at the equator.
B. The centromere holding the two chromatids aligns at equatorial plate and microtubules from the opposite pole of the spindle get attached to the kinetochores.

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Reduction in the chromosome number occurs at

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Recombination nodule is formed

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Which of the following cells in an adult animal do not divide?

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Consider the following statements and select the option that correctly fills the blank:
(i) The chromatids of a homologous chromosome become clearly visible as tetrad in (A).
(ii) During the cytokinesis in plant cells, phragmoplast is formed and grows (B) to form the cell plate.

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Mitosis can be distinguished from meiosis by

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Anaphase I and anaphase II are different from each other because of

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Diplotene phase of meiosis is also characterised by,
A. Dissolution of the synaptonemal complex.
B. Synapsis.
C. Appearance of X-shaped structure.
D. Complete terminalisation of chiasmata.
E. Longest phase of prophase I.
