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Biology, 03.12.2020 22:30 lamondrairving

Which happens during crossing over? A. Two sex cells join together and combine DNA.

B. Genes are exchanged between two alleles.

C. Genes are exchanged between two egg cells.

D. Chromosomes line up randomly during metaphase I.

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Which happens during crossing over? A. Two sex cells join together and combine DNA.

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