In the flowering plant, male gametes are formed by :-

Options

A. Meiosis
B. Mitosis
C. Free nuclear division
D. Endomitosis

Answer

To determine how male gametes are formed in flowering plants, we can follow these steps:

### Step-by-Step Solution:

1. **Location of Male Gamete Formation**:
- Male gametes in flowering plants are formed in the anther, which is part of the stamen.

**Hint**: Remember that the anther is a crucial structure for pollen production.

2. **Structure Involved**:
- Within the anther, there are specialized structures called microsporangia (singular: microsporangium). These are the sites where male gametes develop.

**Hint**: Microsporangia are essential for the formation of pollen grains.

3. **Microsporogenesis**:
- Inside the microsporangium, there are microsporophylls that develop into microspore mother cells (MSMC). These cells undergo meiosis.

**Hint**: Meiosis is a key process for reducing chromosome number and forming spores.

4. **Formation of Pollen Grains**:
- The microspore mother cells divide by meiosis to produce four haploid microspores. Each microspore then develops into a pollen grain.

**Hint**: Pollen grains are the male gametophytes that carry the male gametes.

5. **Maturation of Pollen Grains**:
- Once the pollen grains mature, they are released and can land on the stigma of a flower.

**Hint**: Pollen grains are crucial for fertilization and contain the male gametes.

6. **Development of Male Gametes**:
- Inside the pollen grain, there are two types of cells: the vegetative cell and the generative cell. The generative cell undergoes mitosis to produce two male gametes.

**Hint**: The generative cell is specifically responsible for forming the male gametes through mitosis.

7. **Fertilization Process**:
- When the pollen tube reaches the ovule, the two male gametes are released. One male gamete fuses with the egg cell, while the other fuses with the polar nuclei.

**Hint**: This double fertilization process is unique to angiosperms.

### Conclusion:
The male gametes in flowering plants are formed through **mitosis** in the generative cell of the pollen grain after the initial meiotic division in the microspore mother cell.

**Final Answer**: Mitosis (Option 2).

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