The pollen grains are produced ini (Pollensac/Ovule)

Answer

### Step-by-Step Solution:

1. **Understanding Pollen Grains**:
- Pollen grains are the male gametes of flowering plants. They play a crucial role in plant reproduction.

2. **Chromosome Count**:
- Pollen grains carry a haploid number of chromosomes, denoted as 'n'. This is important because it distinguishes them from other cells in the plant that have a diploid number of chromosomes (2n).

3. **Formation Process**:
- Pollen grains are formed through meiotic cell division. This process reduces the chromosome number by half, resulting in haploid cells.

4. **Location of Formation**:
- Pollen grains are produced in the anther, which is a part of the stamen (the male reproductive organ of the flower). The anther contains structures known as pollen sacs.

5. **Comparison with Ovule**:
- The ovule is located in the ovary of the female reproductive part of the plant and is responsible for producing female gametes (ovum). Thus, it is not involved in the production of pollen grains.

6. **Conclusion**:
- Therefore, the correct answer to the question is that pollen grains are produced in the pollen sac.

### Final Answer:
Pollen grains are produced in the **pollen sac**.

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