In the life cycle of moss, which of the following generations is dominant ?

Options

A. Haploid gametophyte
B. Diploid gametophyte
C. Haploid sporophyte
D. Diploid sporophyte

Explanation

### Step-by-Step Solution:

1. **Understanding Mosses**: Begin by recognizing that mosses are small, non-vascular, flowerless plants. They are part of the plant kingdom and exhibit a specific life cycle that includes two distinct generations.

2. **Identifying Generations**: In the life cycle of moss, there are two generations: the haploid generation (gametophyte) and the diploid generation (sporophyte). It is essential to understand the characteristics of these generations.

3. **Dominance of Generations**: The haploid gametophyte generation is the dominant phase in the life cycle of moss. This means that the gametophyte is the main, independent plant body that can grow and reproduce on its own.

4. **Sporophyte Characteristics**: The diploid sporophyte generation is not independent; it remains attached to the gametophyte. This attachment indicates that the sporophyte is dependent on the gametophyte for nutrition and support.

5. **Evaluating Options**: Now, let's evaluate the provided options:
- **Haploid Gametophyte**: This is the correct answer as it is the dominant generation in moss.
- **Diploid Gametophyte**: This option is incorrect because gametophytes are always haploid.
- **Haploid Sporophyte**: This option is also incorrect because sporophytes are diploid.
- **Diploid Sporophyte**: This is incorrect as well since the sporophyte is the recessive generation in moss.

6. **Conclusion**: Therefore, the dominant generation in the life cycle of moss is the haploid gametophyte.

### Final Answer:
The dominant generation in the life cycle of moss is the **haploid gametophyte**.

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