Riccia gametophyte develops from spore and ends in

Options

A. Thallus
B. Capsule
C. Zygote
D. Spore.

Answer

To solve the question regarding the development of the Riccia gametophyte from a spore and its endpoint, we can break it down into clear steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the development of the Riccia gametophyte starting from a spore and what it ends with.

2. **Identifying the Starting Point**: The gametophyte of Riccia begins its life cycle from a spore. Spores are the reproductive units that give rise to the gametophyte.

3. **Describing the Gametophyte Structure**: The Riccia gametophyte consists of a green thallus, which is the main body of the plant. This thallus is where the gametes (male and female) are produced.

4. **Understanding Fertilization**: The gametophyte produces gametes, which are the male and female reproductive cells. When these gametes fuse during fertilization, they form a zygote.

5. **Identifying the Endpoint**: The endpoint of the Riccia gametophyte’s development is the formation of a zygote after fertilization.

6. **Evaluating the Options**:
- Option 1: Thallus - This is the structure of the gametophyte, not the endpoint.
- Option 2: Capsule - This is not relevant to the endpoint of the gametophyte.
- Option 3: Zygote - This is the correct endpoint after fertilization.
- Option 4: Spore - This is the starting point, not the endpoint.

7. **Conclusion**: Based on the above analysis, the correct answer to the question is option 3: zygote.