Crossing over most commonly occurs during

Telophase II

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Prophase II

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Anaphase I

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Prophase I

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Solution

The correct option is D Prophase I
The exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis is known as crossing over. It occurs in pachytene stage of prophase I of meiosis during a process called synapsis. It helps to produce recombinants.
So, the correct answer is 'Prophase I'.

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Similar questions

Q. Match list I and list II and select the correct answer.

\begin{matrix} List I & List II (Phase of meiosis) & (Event that occurs) 1 & Prophase I & Crossing over occurs 2 & Metaphase II & Sister chromatids migrate to opposite poles 3 & Anaphase I & Homologous chromosomes line up at equator in pairs \end{matrix}

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. Crossing over occurs during the pachytene stage of prophase in meiosis, however the chiasma are visible during

Q. Chromosome is most coiled at (in mitosis)
(a) telophase
(b) anaphase
(c) metaphase
(d) prophase

During which stage of Prophase I, does the crossing over takes place ?

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