Multiple Choice
During which phase of meiosis does crossing over occur?
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12. Meiosis
Introduction to Meiosis
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During which stage of meiosis do sister chromatids separate?
A
Prophase II
B
Anaphase I
C
Anaphase II
D
Metaphase I
Verified step by step guidance1
Understand the stages of meiosis: Meiosis consists of two rounds of division, Meiosis I and Meiosis II, each with their own phases: Prophase, Metaphase, Anaphase, and Telophase.
Recall the events of Anaphase I: During Anaphase I, homologous chromosomes (not sister chromatids) are separated and pulled to opposite poles of the cell.
Recall the events of Anaphase II: In Anaphase II, the sister chromatids are finally separated and move towards opposite poles, similar to what happens in mitosis.
Differentiate between the roles of Anaphase I and Anaphase II: Anaphase I separates homologous chromosomes, while Anaphase II separates sister chromatids.
Conclude that the separation of sister chromatids occurs during Anaphase II, which is the correct stage in meiosis for this event.
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