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20-11-2020
Biology

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Crossing over occurs during prophase 1 of meiosis. Why is the process of crossing over significant for sexual reproduction?

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20-11-2020

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When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. ... It results in gametes that have unique combinations of chromosomes. In sexual reproduction, two gametes unite to produce an offspring.

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