Scelta multipla
In meiosis, how many nuclear divisions occur to produce haploid cells from a diploid precursor cell?
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
Homologous chromosomes separate and move to opposite poles during which phase of meiosis?
A
Anaphase II
B
Anaphase I
C
Prophase I
D
Metaphase I
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Recall the stages of meiosis, which consists of two divisions: meiosis I and meiosis II.
Understand that during meiosis I, homologous chromosomes (each consisting of two sister chromatids) pair up and then separate, while during meiosis II, sister chromatids separate.
Identify that the phase where homologous chromosomes separate and move to opposite poles is during anaphase of meiosis I, called Anaphase I.
Note that in Anaphase II, it is the sister chromatids that separate, not the homologous chromosomes.
Therefore, the correct phase for the separation of homologous chromosomes is Anaphase I.
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