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At which stage of Meiosis I does crossing over occur? A Lepoptene B Zygotene C Pachytene D Diplotene At which stage of Meiosis I does crossing over occur?ALepopteneBZygoteneCPachyteneDDiplotene
achytene is the third phase of meiosis 1. In pachytene, the exchange of the DNA segments takes place between non-sister chromatids of homologous chromosomes. This process is called crossing over and it leads to recombination. Chiasma is a region where two homologous chromosomes undergo crossover. Thus the correct answer is option C.
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