Meiosis occurs in ferns at the time of formation of

Options

A. Spore formation
B. Spore germination
C. Gamete formation
D. Antheridia and archegonia formation

Answer

To solve the question "Meiosis occurs in ferns at the time of formation of:", we will analyze the options provided and understand the process of meiosis in ferns.

### Step-by-Step Solution:

1. **Understanding Meiosis**:
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes or spores. In ferns, meiosis is crucial for their reproductive cycle.

2. **Identifying the Life Cycle of Ferns**:
- Ferns have a life cycle that includes both a diploid phase (sporophyte) and a haploid phase (gametophyte). The sporophyte is the dominant phase in ferns.

3. **Meiosis in Ferns**:
- In ferns, meiosis occurs in the sporangia (structures that produce spores) of the sporophyte. This process leads to the formation of haploid spores, which can germinate to form the gametophyte.

4. **Analyzing the Options**:
- **a. Spore formation**: This is the correct answer as meiosis in ferns occurs during the formation of spores.
- **b. Spore germination**: This is incorrect because germination occurs after meiosis has already taken place.
- **c. Gamete formation**: This is incorrect as gametes are formed from the gametophyte, not directly from meiosis in the sporophyte.
- **d. Anthraedia or archegonia formation**: This is also incorrect because these structures are involved in gamete production and are formed after meiosis.

5. **Conclusion**:
- Based on the analysis, the correct answer is **option A: spore formation**. Meiosis occurs in ferns specifically at the time of spore formation.

### Final Answer:
**Option A: Spore formation**