Which of the following is not a stage of mitosis?

Options

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

Answer

To determine which of the following is not a stage of mitosis, we need to analyze the options provided:

1. **Understand the stages of mitosis**: Mitosis is a process of cell division that consists of several stages. The main stages of mitosis are:
- Prophase
- Metaphase
- Anaphase
- Telophase

2. **Identify the options**: The options given are:
- a. Anaphase
- b. Metaphase
- c. Interphase
- d. Prophase

3. **Analyze each option**:
- **Anaphase**: This is a stage of mitosis where the sister chromatids are pulled apart to opposite sides of the cell.
- **Metaphase**: This is another stage of mitosis where chromosomes align at the cell's equatorial plane.
- **Prophase**: This is the first stage of mitosis where chromatin condenses into visible chromosomes and the nuclear envelope begins to break down.
- **Interphase**: This is not a stage of mitosis. Instead, it is the phase of the cell cycle where the cell prepares for division. Interphase includes G1, S, and G2 phases.

4. **Conclusion**: Since interphase is not a stage of mitosis, the correct answer is:
- **c. Interphase**

### Summary of Steps:
1. Understand the stages of mitosis.
2. Identify the options provided.
3. Analyze each option to determine if it is a stage of mitosis.
4. Conclude that interphase is not a stage of mitosis.