Scelta multipla
In meiosis, how many rounds of cell division occur to produce haploid cells from a diploid precursor?
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17. Meiosis and Sexual Reproduction
Meiosis
Scelta multipla
During which stage of meiosis does a spindle form in a haploid cell?
A
Telophase I
B
Prophase II
C
Metaphase I
D
Prophase I
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Recall that meiosis consists of two sequential divisions: meiosis I and meiosis II, each with distinct stages (prophase, metaphase, anaphase, telophase).
Understand that the spindle apparatus is a structure made of microtubules that forms to separate chromosomes during cell division.
Identify that in meiosis I, the cell is diploid before division, and the spindle forms during prophase I to separate homologous chromosomes.
Recognize that after meiosis I, the cell becomes haploid, and meiosis II proceeds without DNA replication; the spindle must form again to separate sister chromatids.
Therefore, the spindle forms in the haploid cell during prophase II, preparing for chromosome alignment and separation in meiosis II.
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