Scelta multipla
During meiosis I, the kinetochores of sister chromatids act as:
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
During which stage of meiosis do chromosomal centromeres split and chromosomes migrate to opposite ends of the cell?
A
Anaphase I
B
Telophase I
C
Anaphase II
D
Metaphase II
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Recall the key events of meiosis I and meiosis II, focusing on what happens to the chromosomes and their centromeres during each stage.
Understand that during Anaphase I, homologous chromosomes (each consisting of two sister chromatids) are pulled to opposite poles, but the centromeres do not split at this stage.
Recognize that the splitting of centromeres, which separates sister chromatids, occurs during Anaphase II, allowing the chromatids to migrate to opposite ends of the cell.
Note that Telophase I involves the reformation of the nuclear membrane around the separated homologous chromosomes, but no centromere splitting occurs here.
Confirm that Metaphase II is the stage where chromosomes line up at the metaphase plate, but centromere splitting and migration happen in the subsequent Anaphase II.
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