Which statement is true for angiosperms ?

Options

A. Microspore is the resultant of mitotic division.
B. Microspore is thee `1^(st)` cell of gametophytic generation .
C. Microspore is the resultant of double fertilization.
D. Microspore is the first cell of endosperm

Answer

To determine which statement is true for angiosperms, we will analyze the provided statements step by step.

### Step-by-Step Solution:

1. **Understanding Angiosperms**:
- Angiosperms are flowering plants that produce seeds enclosed within a fruit. They undergo a process called microsporogenesis to produce microspores.

2. **Evaluating the Statements**:
- **Statement 1**: "Microspore is the resultant of mitotic division."
- This statement is **false**. Microspores are produced through meiotic division, not mitotic division. During microsporogenesis, the sporogenous tissue in the anther undergoes meiosis to form microspore tetrads.

- **Statement 2**: "Microspore is the first cell of gametophytic generation."
- This statement is **true**. After the meiotic division, the microspore is indeed the first cell of the gametophytic generation, which will develop into pollen grains.

- **Statement 3**: "Microspore is the resultant of double fertilization."
- This statement is **false**. Double fertilization refers to the fusion of one male gamete with the egg cell to form a zygote and the other male gamete with the diploid secondary nucleus to form the primary endosperm nucleus. Microspores are not a product of this process.

- **Statement 4**: "Microspore is the first cell of endosperm."
- This statement is also **false**. The endosperm is formed after fertilization, and the microspore itself does not contribute to the endosperm.

3. **Conclusion**:
- The only true statement regarding angiosperms is **Statement 2**: "Microspore is the first cell of gametophytic generation."

### Final Answer:
The true statement for angiosperms is: **"Microspore is the first cell of gametophytic generation."**