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During which step of meiosis does crossing over occur? A. prophase I B. anaphase I C. telophase I D. metaphase I
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During which step of meiosis does crossing over occur? A. prophase I B. anaphase I C. telophase I D. metaphase I

User Nick Albrecht
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It occurs at A. prophase, I say this because, most of the answers here aren't happening when it crosses over.
User Fatemeh Qasemkhani
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During meiosis, crossing over occurs during prophase I. It is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes, which contribute to genetic diversity.
User Theoretisch
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