In which phase of meiosis, centromere divides?

Options

A. Metaphase-I
B. Anaphase-Il
C. Anaphase-I
D. Metaphase-Il

Explanation

To determine in which phase of meiosis the centromere divides, we need to analyze the different phases of meiosis. Meiosis consists of two main stages: Meiosis I and Meiosis II. Each of these stages is further divided into several phases.

1. **Understanding Meiosis**:
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells. It consists of two main stages: Meiosis I and Meiosis II.

2. **Phases of Meiosis I**:
- Meiosis I includes:
- Prophase I
- Metaphase I
- Anaphase I
- Telophase I

3. **Phases of Meiosis II**:
- Meiosis II includes:
- Prophase II
- Metaphase II
- Anaphase II
- Telophase II

4. **Identifying Centromere Division**:
- The centromere is the region of a chromosome where the two sister chromatids are joined together. The division of the centromere is crucial for the separation of chromatids.
- In Meiosis I, during Anaphase I, homologous chromosomes are separated, but the centromeres do not divide; the sister chromatids remain attached.
- In Meiosis II, during Anaphase II, the centromeres divide, allowing the sister chromatids to separate and move to opposite poles of the cell.

5. **Conclusion**:
- Therefore, the phase of meiosis in which the centromere divides is **Anaphase II**.