Genetic recombination occurs during

Zygotene

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Diplotene

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Pachytene

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Metaphase - I

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Solution

The correct option is C Pachytene
During the pachytene stage, bivalent chromosome now clearly appears as tetrads. This stage is characterized by the appearance of recombination nodules, the sites at which crossing over between non-sister chromatids of the homologous chromosome. And then crossing over takes place.
So the correct answer is "Pachytene".

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