Chromosomal segregation occurs during

Options

A. Metaphase I
B. Anaphase II
C. Prophase I
D. Anaphase I

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks when chromosomal segregation occurs during the process of meiosis. We need to identify the correct stage from the given options: Metaphase 1, Anaphase 2, Prophase 1, and Anaphase 1.

2. **Meiosis Overview**: Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid daughter cells from one diploid cell. It consists of two main stages: Meiosis I and Meiosis II, each with their own phases (prophase, metaphase, anaphase, and telophase).

3. **Identifying Chromosomal Segregation**: Chromosomal segregation refers to the separation of chromosomes into different daughter cells. In meiosis, this occurs during specific phases.

4. **Analyzing the Options**:
- **Metaphase 1**: This is a stage where homologous chromosomes are aligned at the cell's equatorial plane but not yet separated.
- **Anaphase 1**: This is the stage where homologous chromosomes are pulled apart and segregated into different daughter cells. This is the key stage for chromosomal segregation in meiosis.
- **Prophase 1**: This is the stage where chromosomes condense and homologous chromosomes pair up, but segregation has not yet occurred.
- **Anaphase 2**: This stage involves the separation of sister chromatids, similar to mitosis, but it is not the primary stage for chromosomal segregation in meiosis.

5. **Conclusion**: Based on the analysis, the correct answer is **Anaphase 1**, as this is the stage where chromosomal segregation occurs during meiosis.

**Final Answer**: Chromosomal segregation occurs during **Anaphase 1**.

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