Fundamentholfundamenthol
NEET2022Biology
Q.

Which one of the following never occurs during mitotic cell division ?

  1. A

    Spindle fibres attach to kinetochores of chromosomes

  2. B

    Movement of centrioles towards opposite poles

  3. C

    Pairing of homologous chromosomes

  4. D

    Coiling and condensation of the chromatids

Solution

Pairing (synapsis) of homologous chromosomes occurs during zygotene of prophase I of meiosis, not in mitosis.

In mitosis, homologous chromosomes behave independently and do not pair. The other listed events (spindle attachment to kinetochores, centriole movement, and chromatid condensation) all occur during mitosis.

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