Multiple Choice
Meiotic nondisjunction could be a result of __________.
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9. Mitosis and Meiosis
Meiosis
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During which phase of meiosis are sister chromatids separated?
A
Metaphase I
B
Anaphase I
C
Prophase II
D
Anaphase II
Verified step by step guidance1
Recall the two main divisions in meiosis: Meiosis I and Meiosis II. Each has distinct phases where chromosomes behave differently.
In Meiosis I, homologous chromosomes (each consisting of two sister chromatids) are separated. This occurs during Anaphase I.
In Meiosis II, the sister chromatids of each chromosome are separated. This is analogous to mitosis but occurs in haploid cells.
Identify the phase in Meiosis II where sister chromatids are pulled apart toward opposite poles. This phase is Anaphase II.
Therefore, sister chromatids are separated during Anaphase II, not during Metaphase I, Anaphase I, or Prophase II.
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