Find the ploidy level of followings with respect to bryophytes:-
A-Gametophyte
B-Sporophyte
C-Spore
D-Antherozoids
E-Gemmae
F-Rhizoids

Answer

To determine the ploidy levels of the specified structures in bryophytes, we will analyze each one based on their roles in the life cycle of bryophytes.

### Step-by-Step Solution:

1. **Gametophyte**:
- The gametophyte is the dominant phase in bryophytes. It is a multicellular structure that is haploid (N). This is where gametes are produced.
- **Ploidy Level**: Haploid (N)

2. **Sporophyte**:
- The sporophyte is a multicellular structure that arises from the fertilization of gametes. It is diploid (2N) because it contains two sets of chromosomes.
- **Ploidy Level**: Diploid (2N)

3. **Spore**:
- Spores are produced by the sporophyte through meiosis. Spores are haploid (N) and can develop into gametophytes.
- **Ploidy Level**: Haploid (N)

4. **Antherozoids**:
- Antherozoids are the male gametes produced by the gametophyte. They are haploid (N).
- **Ploidy Level**: Haploid (N)

5. **Gemmae**:
- Gemmae are asexual reproductive structures produced by the gametophyte. They are also haploid (N) and can develop into new gametophytes.
- **Ploidy Level**: Haploid (N)

6. **Rhizoids**:
- Rhizoids are root-like structures that anchor the gametophyte. They do not play a direct role in reproduction and are also haploid (N).
- **Ploidy Level**: Haploid (N)

### Summary of Ploidy Levels:
- A. Gametophyte: **Haploid (N)**
- B. Sporophyte: **Diploid (2N)**
- C. Spore: **Haploid (N)**
- D. Antherozoids: **Haploid (N)**
- E. Gemmae: **Haploid (N)**
- F. Rhizoids: **Haploid (N)**