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Multiple Choice
During which phase of meiosis is the chromosome number reduced from 2n to n?
A
Telophase II
B
Metaphase I
C
Anaphase I
D
Prophase I
Verified step by step guidance
1
Understand that meiosis is a type of cell division that reduces the chromosome number by half, creating four haploid cells from one diploid cell.
Recall that meiosis consists of two stages: Meiosis I and Meiosis II. Each stage has its own phases: Prophase, Metaphase, Anaphase, and Telophase.
In Meiosis I, homologous chromosomes are separated, which reduces the chromosome number from diploid (2n) to haploid (n).
During Anaphase I, homologous chromosomes are pulled apart to opposite poles of the cell. This is the key phase where the chromosome number is reduced from 2n to n.
Recognize that in Meiosis II, the sister chromatids are separated, but the chromosome number remains haploid (n) throughout this stage.