Biology, 26.03.2021 18:20 tradee001

Which situation is a result of crossing-over during meiosis? A. Genes are rearranged, increasing the genetic variability of offspring.

B. Chromatids thicken and align themselves, helping to ensure genetic continuity.

C. Genes are duplicated exactly, ensuring that offspring will be identical to the parents.

D. Chromatids fail to sort independently, creating abnormal chromosome numbers.

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