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 need to analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Understanding Angiosperms**:
- Angiosperms are flowering plants that produce seeds enclosed within a fruit. The term "angiosperm" comes from the Greek words "angio" meaning "covered" and "sperma" meaning "seed."

2. **Evaluating the Statements**:
- **Statement 1**: "Microspore is the result of mitotic division."
- This statement is **false**. Microspores are produced from microspore mother cells through **meiosis**, not mitosis. Microspore mother cells are diploid (2n), and they undergo meiosis to produce haploid (n) microspores.

- **Statement 2**: "Microspore is the first cell of gametophytic generation."
- This statement is **true**. Microspores are haploid and represent the first cell of the gametophyte generation in angiosperms. The gametophyte generation is indeed haploid.

- **Statement 3**: "Microspore is the result of double fertilization."
- This statement is **false**. Double fertilization occurs after fertilization of the egg cell by a sperm cell, resulting in the formation of an embryo and endosperm. Microspores are not a product of this process.

- **Statement 4**: "Microspore is the first cell of endosperm."
- This statement is **false**. Microspores develop into male gametes (pollen grains) and do not directly form endosperm. The endosperm is formed from the fertilization of the polar nuclei by a sperm cell during double fertilization.

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.**