Multiple Choice
During meiosis, at which stage do homologous chromosomes separate and move toward opposite poles of the cell?
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9. Mitosis and Meiosis
Meiosis
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During which stage of meiosis do chromosomes line up along the middle of the cell in a single file?
A
Anaphase II
B
Metaphase II
C
Metaphase I
D
Prophase I
Verified step by step guidance1
Recall the stages of meiosis, which include Meiosis I and Meiosis II, each with Prophase, Metaphase, Anaphase, and Telophase stages.
Understand that during Metaphase I, homologous chromosome pairs line up along the middle of the cell in pairs (tetrads), not single file.
Recognize that during Metaphase II, individual chromosomes (consisting of sister chromatids) line up along the middle of the cell in a single file, similar to mitosis.
Note that Anaphase II is when sister chromatids separate and move toward opposite poles, so chromosomes are no longer lined up in the middle.
Conclude that the correct stage when chromosomes line up in a single file along the middle of the cell is Metaphase II.
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