During prophase i in meiosis, crossing over takes place. what other major event takes place? question 23 options: sister chromatids are pulled apart. chromosome pairs line up along in the center. chromosome pairs pair up.

The correct answer is B.) Chromosome pairs line up along the center.

Explanation:

Chromosome pairs line up in Prophase I.

Sister chromatids are pulled apart in Anaphase II. Not A. When chromosome pairs pair up, this is called Metaphase I.

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