7. Crossing over takes place
between
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Crossing over occurs between prophase I and metaphase I 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 chromosome sister chromatids.
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crossing overtake place during the pachytene stage. during this stage, non- sister chromatids of homologous chromosome may exchange segment over region of homology
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