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 Angiosperms**:
- Angiosperms are flowering plants that produce seeds enclosed within a fruit. They are characterized by the presence of flowers and fruits.

2. **Identifying Male Gametophyte**:
- The male gametophyte in angiosperms is represented by the pollen grain.

3. **Microspore Formation**:
- The development of the male gametophyte begins with the formation of microspores. Microspores are produced through a process called microsporogenesis, which occurs in the anthers of the flower.

4. **Sporogenesis Tissue**:
- Within the anthers, there is a tissue known as sporogenous tissue. This tissue undergoes meiotic division to produce microspore tetrads.

5. **Dissociation of Microspores**:
- As the anthers mature and dehydrate, the microspore tetrads dissociate, leading to the formation of individual microspores.

6. **Development into Pollen Grain**:
- Each microspore then develops into a pollen grain, which represents the male gametophyte.

7. **Conclusion**:
- Therefore, the first cell from which the development of the male gametophyte takes place is the microspore.

### Final Answer:
The correct answer is **microspore**.

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