The formation of two male gametes in flowering plants occurs by

Options

A. meiosis of microspore mother cell
B. mitosis of microspore
C. mitosis of vegetative cell
D. mitosis of generative cell

Answer

To solve the question regarding the formation of two male gametes in flowering plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Male Gamete Formation**: In flowering plants, male gametes are produced through a process involving microspores and generative cells.

2. **Microspore Development**: The microspore mother cell (microsporocyte) undergoes meiosis to produce four haploid microspores. Each of these microspores can develop into a pollen grain.

3. **Pollen Grain Structure**: Each pollen grain consists of a vegetative cell and a generative cell. The vegetative cell is responsible for the growth of the pollen tube, while the generative cell will divide to form the male gametes.

4. **Mitosis of the Generative Cell**: The generative cell undergoes mitosis to produce two sperm cells (male gametes). This process is crucial as it leads to the formation of the two male gametes that fertilize the ovule.

5. **Cytokinesis**: After mitosis, cytokinesis occurs, which is the division of the cytoplasm, resulting in the formation of two distinct sperm cells from the generative cell.

6. **Conclusion**: Therefore, the correct answer to the question is that the formation of two male gametes in flowering plants occurs by the mitosis of the generative cell.

### Final Answer:
The formation of two male gametes in flowering plants occurs by **mitosis of the generative cell**.

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