Function of meiosis I is to separate

Options

A. Homologous chromosomes
B. Sister chromatids
C. Cross-overs
D. Parental chromosomes

Answer

**Step-by-Step Solution:**

1. **Understanding Meiosis**: Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes (sperm and eggs). It consists of two main stages: meiosis I and meiosis II.

2. **Function of Meiosis I**: The primary function of meiosis I is to separate homologous chromosomes. This is crucial for ensuring that each gamete receives only one chromosome from each homologous pair.

3. **Phases of Meiosis I**: Meiosis I is divided into four phases:
- **Prophase I**: Homologous chromosomes pair up and exchange genetic material through a process called crossing over.
- **Metaphase I**: The paired homologous chromosomes align at the cell's equatorial plane.
- **Anaphase I**: The homologous chromosomes are pulled apart to opposite poles of the cell.
- **Telophase I**: The cell divides into two haploid cells, each containing one chromosome from each homologous pair.

4. **Conclusion**: The correct answer to the question regarding the function of meiosis I is that it separates homologous chromosomes. This is distinct from separating sister chromatids, which occurs in meiosis II.

**Final Answer**: The function of meiosis I is to separate homologous chromosomes.

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