SAT Subject Biology Practice Question 185: Answer and Explanation

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Question: 185

15. Question below refers to the following diagram.

A pair of sister chromatids

A.
B.
C.
D.
E.

Correct Answer: B

Explanation:

A pair of sister chromatids makes up the two halves of a chromosome that has replicated its DNA. The sister chromatids are joined at the centromere. Although it has replicated, it is still considered a single chromosome.

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