Condensation and decondensation of chromosomes occurs respectively in

Options

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

Answer

To answer the question regarding the condensation and decondensation of chromosomes, we will analyze the stages of mitosis and identify where these processes occur.

### Step-by-Step Solution:

1. **Identify the stages of mitosis**: Mitosis consists of four main stages: prophase, metaphase, anaphase, and telophase.

2. **Condensation of chromosomes**:
- During prophase, chromosomes condense and become visible under a light microscope. This condensation is crucial for the chromosomes to be properly segregated during cell division.
- Therefore, condensation occurs in **prophase**.

3. **Decondensation of chromosomes**:
- During telophase, the chromosomes begin to decondense, returning to a less tightly packed state. This process is essential as the cell prepares to enter interphase after mitosis is complete.
- Thus, decondensation occurs in **telophase**.

4. **Match the processes with the options**:
- The question asks for the respective stages of condensation and decondensation. Based on our analysis:
- Condensation occurs in **prophase**.
- Decondensation occurs in **telophase**.

5. **Conclusion**: The correct answer is that condensation and decondensation of chromosomes occurs respectively in **prophase and telophase**.

### Final Answer:
Condensation and decondensation of chromosomes occurs respectively in **prophase and telophase**.

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