In angiosperms , the first cell from which the development of male gametophyte takes place is :

Options

A. Pollen grain
B. Zygote
C. Microspore
D. PEC

Answer

To solve the question regarding the first cell from which the development of the male gametophyte takes place in angiosperms, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Male Gametophyte Development**:
- In angiosperms, the male gametophyte is represented by pollen grains. The development of the male gametophyte begins from a specific type of cell.

2. **Identifying the Options**:
- The options provided are:
1. Pollen
2. Zygote
3. Microspore
4. Primary Endosperm Cell (PEC)

3. **Analyzing Each Option**:
- **Option 1: Pollen**: This is the mature male gametophyte itself, not the precursor cell.
- **Option 2: Zygote**: This is the result of fertilization between male and female gametes and is part of the sporophytic generation, not the gametophytic generation.
- **Option 3: Microspore**: This is formed from the microspore mother cell through the process of microsporogenesis. The microspore undergoes mitosis to develop into the male gametophyte (pollen grain).
- **Option 4: Primary Endosperm Cell (PEC)**: This is formed after fertilization and is involved in the development of the endosperm, not the male gametophyte.

4. **Conclusion**:
- After analyzing all options, the correct answer is **Option 3: Microspore**. The microspore is the first cell that develops into the male gametophyte.

### Final Answer:
**The first cell from which the development of male gametophyte takes place in angiosperms is the Microspore.**

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