In angiosperms how many megaspore mother cells are required to produce 600 functional megaspores?

Options

A. 600
B. 150
C. 2400
D. 200

Answer

To determine how many megaspore mother cells (MMCs) are required to produce 600 functional megaspores in angiosperms, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Megaspore Mother Cells (MMCs)**:
- In angiosperms, the megaspore mother cell (MMC) is diploid and is located in the ovule. It undergoes meiosis to produce megaspores.

2. **Meiotic Division of MMC**:
- Each MMC undergoes meiotic division, which results in the formation of four megaspores. However, not all of these megaspores are functional.

3. **Functional Megaspores**:
- Out of the four megaspores produced from one MMC, typically only one megaspore remains functional, while the other three degenerate.

4. **Calculating the Number of MMCs Needed**:
- Since only one functional megaspore is produced from each MMC, to produce 600 functional megaspores, we will need 600 MMCs.

5. **Conclusion**:
- Therefore, the number of megaspore mother cells required to produce 600 functional megaspores is 600.

### Final Answer:
- The answer is **600 megaspore mother cells**.

---