The main plant body/dominant plant in life cycle of a fern/Pleridophytes is

Options

A. gametophyte (x)
B. sporophyte (2x)
C. apogamous
D. aposporous

Answer

To determine the main plant body or dominant plant in the life cycle of a fern (Pteridophytes), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Pteridophytes**:
- Pteridophytes, commonly known as ferns, are vascular plants that reproduce through spores rather than seeds. They have a complex life cycle that includes two distinct phases: the sporophyte and the gametophyte.

2. **Identifying the Phases**:
- The life cycle of ferns consists of two main phases:
- **Sporophyte Phase**: This is the diploid phase (2n) where the plant has a root, stem, and leaves. It is the dominant phase in ferns.
- **Gametophyte Phase**: This is the haploid phase (n) that produces gametes (sperm and eggs). It is usually smaller and less conspicuous than the sporophyte.

3. **Comparing the Two Phases**:
- In ferns, the sporophyte is the larger, more complex, and dominant form of the plant. It is what we typically recognize as a fern.
- The gametophyte is smaller and often lives independently for a short period but does not dominate the life cycle.

4. **Conclusion**:
- Based on the understanding of the life cycle and the characteristics of the phases, the main plant body or dominant plant in the life cycle of ferns (Pteridophytes) is the **Sporophyte**.

### Final Answer:
The main plant body/dominant plant in the life cycle of a fern/Pteridophytes is **Sporophytes**.

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