SAT Subject Biology Practice Question 186: Answer and Explanation

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Question: 186

16. Question below refers to the following diagram.

Crossing over occurs between this pair.

A.
B.
C.
D.
E.

Correct Answer: D

Explanation:

Crossing over, the exchange of homologous DNA segments, occurs between homologous chromosomes in prophase of meiosis I. Homologous chromosomes are separate chromosomes with highly similar, but not identical, DNA sequences.

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