When a cell divides by meiosis, reduction in the number of chromosomes occurs during which of the following stages?

Anaphase I

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Anaphase II

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Prophase I

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Telophase II

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Solution

The correct option is A Anaphase I
In anaphase I, there is a shortening of the spindle microtubules. Each daughter chromosome is pulled along by its centromere. The two sister chromatids of each chromosome are pulled apart by the spindle and dragged by their kinetochores toward opposite poles of the cell. Hence there is a reduction in the number of chromosomes to half. Thus the correct answer is option A.

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Similar questions

Q. Pick the correct statements.
A. Synapsis of homologous chromosomes takes place during prophase I of meiosis.
B. Division of centromeres takes place during anaphase I of meiosis.
C. Spindle fibres disappear completely in telophase of mitosis.
D. Nucleoli reappear at telophase I of meiosis.

Q. In which stage of the cell cycle the chromosomes are maximally condensed
(1)prophase
(2)metaphase
(3)anaphase
(4)telophase

In which one of the following options the stages of mitosis have been given in correct sequence ?
(a) Prophase, metaphase, telophase, anaphase
(b) Prophase, metaphase, anaphase, telophase
(c) Anaphase, telophase, prophase, metaphase
(d) Telophase, anaphase, prophase, metaphase

Q. Chromosomes appear at equator in
(a) anaphase
(b) metaphase
(c) prophase
(d) telophase

Q. Number of bivalent are 8 in prophase I. What is the number of chromosomes during anaphase II ?

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