Question

Which best explains how independent assortment causes variation?

A. The chromosomes that each gamete receives is essentially randomized, potentially resulting in a mixture of
maternal and paternal chromosomes.

B. Gametes strictly receive either maternal or paternal chromosomes, but not both

C. Some gametes do not receive all possible chromosomes.

D. Independent assortment is irrelevant to genetic variation

Answer 1

D.

Explanation: Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.

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