Scelta multipla
During which phase of meiosis do homologous chromosomes separate from each other and move to opposite poles of the cell?
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
During meiosis, how many times does a diploid germ cell divide to produce haploid gametes?
A
Three times
B
Four times
C
Twice
D
Once
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Understand that meiosis is a special type of cell division that reduces the chromosome number by half to produce haploid gametes from diploid germ cells.
Recall that meiosis consists of two main stages: Meiosis I and Meiosis II, each involving a round of cell division.
In Meiosis I, homologous chromosomes separate, reducing the chromosome number from diploid (2n) to haploid (n), but each chromosome still consists of two sister chromatids.
In Meiosis II, the sister chromatids separate, similar to mitosis, resulting in four haploid cells from the original diploid cell.
Therefore, the diploid germ cell divides twice during meiosis to produce haploid gametes.
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