Nuclear dimorphism occurs in group

Options

A. zooflagellata
B. cilliata
C. sporozoa
D. sarcodina

Answer

**Step-by-Step Solution:**

1. **Understanding Nuclear Dimorphism**:
- Nuclear dimorphism refers to the presence of two different nuclei within a single cell of an organism. This condition is significant in certain groups of organisms.

2. **Identifying the Group**:
- We need to determine which group of organisms exhibits nuclear dimorphism. The main groups to consider are from the Kingdom Protista, which includes various protozoans.

3. **Focusing on Protozoan Ciliates**:
- Among the protozoans, ciliate organisms are known to exhibit nuclear dimorphism. Ciliates are characterized by the presence of cilia, which are hair-like structures used for movement.

4. **Examples of Ciliates**:
- A well-known example of a ciliate is Paramecium. Paramecium has two types of nuclei: a macronucleus and one or more micronuclei, which exemplifies nuclear dimorphism.

5. **Evaluating Other Options**:
- The question may provide multiple-choice options. We need to evaluate them:
- **Zoo flagellates**: These organisms use flagella for movement and do not exhibit nuclear dimorphism.
- **Sporozoa**: These are non-motile and do not show nuclear dimorphism.
- **Sarkodena**: These organisms, like amoebas, move using pseudopodia and also do not exhibit nuclear dimorphism.

6. **Conclusion**:
- Based on the evaluation, the correct answer is that nuclear dimorphism occurs in the group of **Protozoan Ciliates**.

**Final Answer**: Nuclear dimorphism occurs in the group of Protozoan Ciliates.

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