Select incorrect statement for male gametophyte in angiosperms?

Options

A. Pollen tube is formed by intine
B. Male gametes are non motile
C. Tube nucleus divides to form sperms
D. Generative cell is smaller than tube cell

Answer

To determine the incorrect statement regarding male gametophytes in angiosperms, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Male Gametophyte**:
- The male gametophyte in angiosperms is represented by the pollen grain. It is responsible for producing male gametes (sperms) and is crucial for the process of fertilization.

2. **Analyzing the Options**:
- **Option A**: "Pollen tube is formed by intine."
- This statement is correct. The intine is the inner layer of the pollen wall, and the pollen tube develops from it during germination.

- **Option B**: "Male gametes are non-motile."
- This statement is also correct. In angiosperms, the male gametes (sperms) do not have flagella and are therefore non-motile.

- **Option C**: "Tube nucleus divides to form sperms."
- This statement is incorrect. The generative nucleus, not the tube nucleus, divides to form the two sperm cells. The tube nucleus is responsible for the growth of the pollen tube.

- **Option D**: "Generative cell is smaller than tube cell."
- This statement is correct. The generative cell is indeed smaller than the tube cell in the pollen grain.

3. **Conclusion**:
- The incorrect statement regarding male gametophytes in angiosperms is **Option C**: "Tube nucleus divides to form sperms."

### Final Answer:
**Option C** is the incorrect statement regarding male gametophytes in angiosperms.

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