Chromosomes with one chromatid move towards the poles of the spindle during

Options

A. 1. Anaphase-I
B. 2. Anaphase
C. 3. Metaphase
D. 4. Metaphase-I

Answer

To solve the question "Chromosomes with one chromatid move towards the poles of the spindle during," we need to analyze the stages of cell division, particularly focusing on the phases of mitosis and meiosis.

### Step-by-Step Solution:

1. **Understand the Cell Cycle and Division**: The cell cycle consists of interphase and the mitotic phase, which includes prophase, metaphase, anaphase, and telophase. In meiosis, there are two rounds of division: meiosis I and meiosis II.

2. **Identify the Stages**: The question refers to specific stages of cell division:
- **Metaphase**: Chromosomes align at the metaphase plate, but they are still in the form of sister chromatids.
- **Anaphase**: The sister chromatids are pulled apart towards opposite poles of the cell.
- **Anaphase I (in meiosis)**: Homologous chromosomes are separated, and each chromosome still consists of two sister chromatids.
- **Anaphase II (in meiosis)**: The sister chromatids are separated, resulting in individual chromatids moving towards the poles.

3. **Determine the Correct Phase**: The question specifically mentions "chromosomes with one chromatid." This refers to the stage where sister chromatids have been separated. This occurs during:
- Anaphase II of meiosis, where each chromatid is now considered an individual chromosome.

4. **Conclusion**: Therefore, the correct answer to the question is that chromosomes with one chromatid move towards the poles of the spindle during **Anaphase II** of meiosis.

### Final Answer:
Chromosomes with one chromatid move towards the poles of the spindle during **Anaphase II**.

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