SAT Subject Biology Practice Question 75: Answer and Explanation

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Question: 75

5. Crossing over occurs in this phase.

A. Anaphase I
B. Prophase I
C. Anaphase II
D. Prophase II
E. Metaphase I

Correct Answer: B


Crossing over occurs during prophase I of meiosis. These exchanges hold homologous chromosomes together during metaphase.

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