At which State of meiosis crossing over of genetic material takes plac

1.	At which State of meiosis crossing over of genetic material takes place?
Answer» Crossing over occurs between\xa0prophase\xa0I and\xa0metaphase\xa0I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant\xa0chromosome\xa0sister chromatids.\xa0Crossing over (recombination) occurs during\xa0pachytene. Recombination involves mutual exchange of the corresponding segments of non-sister chromatids of homologous\xa0chromosomes\xa0and produces variations. It takes place by breakage and reunion of chromatid segments.

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