In which of the following, gametes are produced by mitrotic division?

Options

A. Pteridophytes
B. Algae
C. Gymnosperms
D. Angiosperms

Answer

To determine which of the following produces gametes by mitotic division, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Gamete Production**:
- Gametes are reproductive cells that can fuse during fertilization to form a zygote. They can be produced through two types of cell division: mitosis and meiosis.

2. **Analyzing Pteridophytes**:
- Pteridophytes (like ferns) have a dominant sporophyte generation. In these plants, gametes are produced by meiosis in the spore mother cells, which means they do not produce gametes through mitotic division.
- **Conclusion**: Pteridophytes do not produce gametes by mitotic division.

3. **Analyzing Algae**:
- In many algae, gametes are produced through mitotic division. This is because algae can reproduce asexually and sexually, and in some species, the gametes are formed by mitosis.
- **Conclusion**: Algae produce gametes by mitotic division.

4. **Analyzing Gymnosperms**:
- Gymnosperms have a life cycle where gametes are produced through meiosis. The pollen grains, which are the male gametophytes, are formed after meiosis.
- **Conclusion**: Gymnosperms do not produce gametes by mitotic division.

5. **Analyzing Angiosperms**:
- Similar to gymnosperms, angiosperms also produce gametes through meiosis. The formation of gametes occurs in the ovules and pollen grains, which are produced after meiotic division.
- **Conclusion**: Angiosperms do not produce gametes by mitotic division.

### Final Answer:
The correct answer is **Algae**, as it is the only group among the options given that produces gametes by mitotic division.

---