In angiosperms, a mature male gametophyte is formed from a pollen mother cell through

Options

A. Two meiotic divisions
B. Three mitotic divisions
C. One meiotic two mitotic divisions
D. A single meiotic division.

Explanation

To solve the question regarding the formation of a mature male gametophyte from a pollen mother cell in angiosperms, we can break down the process into clear steps:

### Step-by-Step Solution:

1. **Understanding the Pollen Mother Cell**:
- The pollen mother cell (PMC) is a diploid cell that undergoes meiosis to produce haploid pollen grains.

2. **Meiosis**:
- The first step in the formation of a mature male gametophyte is meiosis. The PMC undergoes meiosis, resulting in the formation of four haploid microspores (pollen grains).

3. **Mitosis**:
- Each haploid microspore then undergoes mitosis. This is the second step in the process. During this division, each microspore divides to form two nuclei: one generative nucleus and one tube nucleus.

4. **Second Mitosis**:
- The generative nucleus undergoes another mitotic division. This results in the formation of two male gametes (sperm cells).

5. **Formation of Mature Male Gametophyte**:
- At this point, the structure now consists of the tube cell (which will develop into the pollen tube) and the two male gametes. This entire structure is referred to as the mature male gametophyte.

6. **Conclusion**:
- Therefore, the formation of a mature male gametophyte from a pollen mother cell involves **one meiotic division followed by two mitotic divisions**.

### Final Answer:
The correct answer is **1 meiotic division and 2 mitotic divisions**.

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