In which phase of mitosis are the chromosomes moving toward the poles ?

Options

A. Prophase
B. Telophase
C. Metaphase
D. Anaphase

Answer

To determine in which phase of mitosis the chromosomes are moving toward the poles, we can follow these steps:

1. **Understand the Phases of Mitosis**: Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct events that occur.

2. **Identify the Movement of Chromosomes**:
- **Prophase**: Chromosomes condense and become visible, but they are not yet moving toward the poles.
- **Metaphase**: Chromosomes align at the cell's equatorial plane (metaphase plate) but are still not moving toward the poles.
- **Anaphase**: This is the phase where the sister chromatids are pulled apart and begin moving toward opposite poles of the cell.
- **Telophase**: Chromosomes reach the poles and begin to de-condense, but they are not actively moving anymore.

3. **Conclusion**: Based on the above analysis, the phase of mitosis where chromosomes are actively moving toward the poles is **anaphase**.

Thus, the correct answer is **D, anaphase**.

---