Crossing over causes

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(C) Crossing over is a biological process that occurs during the pachytene stage of prophase-$I$ of meiosis. During this process,there is an exchange

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Recombination between linked genes

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(C) Crossing over is a biological process that occurs during the pachytene stage of prophase-$I$ of meiosis. During this process,there is an exchange of genetic material between non-sister chromatids of homologous chromosomes. This exchange leads to the formation of new combinations of alleles,which is known as genetic recombination. Therefore,crossing over results in recombination between linked genes,increasing genetic diversity.

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