QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which phrase best describes the process of crossing over?
A. Pairs of homologous chromosomes exchange segments.
B. Pairs of sister chromatids exchange segments.
C. Pairs of homologous chromosomes become linked.
D. Pairs of sister chromatids become linked.
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Answer
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Step 1I'll solve this problem step by step, focusing on the biological concept of crossing over.
Step 2: Understand the Terminology
Crossing over is a key genetic process that occurs during meiosis, specifically during prophase I of meiosis I. Let's analyze each option carefully.
Final Answer
Pairs of homologous chromosomes exchange segments.
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