Question

What is "crossing over," and during which phase does it occur?
A. Exchange of genetic material; occurs during Prophase I
B. Separation of sister chromatids; occurs during Metaphase II
C. Division of cytoplasm; occurs during Telophase I
D. DNA replication; occurs during Interphase

Answers

GPT-4o mini
A. Exchange of genetic material; occurs during Prophase I

Crossing over is the process where homologous chromosomes exchange genetic material during meiosis, specifically during Prophase I. This contributes to genetic diversity in the resulting gametes.

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