Plasmotomy occurs in case of

Options

A. Uninucleate protists
B. Binucleate protists
C. Multinucleate protists
D. All the above.

Answer

### Step-by-Step Solution:

1. **Understanding Plasmotomy**: Plasmotomy is a type of asexual reproduction that occurs in certain protists. In this process, a single parent cell divides into two or more daughter cells without undergoing mitosis.

2. **Identifying the Types of Protists**: The question presents four options regarding the types of protists:
- Uninucleate protists (having one nucleus)
- Binucleate protists (having two nuclei)
- Multinucleate protists (having multiple nuclei)
- All of the above

3. **Analyzing the Process of Plasmotomy**: In plasmotomy, the cell divides into multinucleated daughter cells. This means that the original cell does not divide its nucleus in the traditional sense (as in mitosis), but rather the cytoplasm divides, resulting in cells that contain multiple nuclei.

4. **Determining the Correct Option**:
- Uninucleate protists cannot undergo plasmotomy because they only have one nucleus to begin with.
- Binucleate protists also cannot undergo plasmotomy in the same way, as they would still result in daughter cells that do not fit the definition of multinucleated.
- Multinucleate protists are the only type that can undergo plasmotomy, as they can divide and still maintain multiple nuclei in the resulting daughter cells.

5. **Conclusion**: Therefore, the correct answer to the question "Plasmotomy occurs in case of" is **multinucleate protists**.