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NEET Previous Year Question

$In meiosis crossing over is initiated at:$

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

A $Pachytene$
B $Leptotene$
C $Zygotene$
D $Diplotene$

Correct answer: A

Solution

(a) During the pachytene stage of Prophase I, crossing over is initiated between non-sister chromatids of homologous chromosomes. The enzyme recombinase helps in this process, resulting in genetic recombination.

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