The double stranded circular DNA is found in
(A) Prokaryotic cells
( B) Protistans
( C ) Plant cells
(D) Animal cells

Options

A. A only
B. A,B,C only
C. A,B only
D. A,B,C,D

Answer

To solve the question regarding the presence of double-stranded circular DNA, we can analyze each option step by step:

1. **Understanding Circular DNA**:
- Circular DNA is a type of DNA that forms a closed loop and does not have any ends. This structure is typically found in certain types of cells.

2. **Option (A) Prokaryotic cells**:
- Prokaryotic cells, such as bacteria, contain circular DNA. This DNA is often found in the form of plasmids or as the main chromosome. Therefore, this option is likely correct.

3. **Option (B) Protistans**:
- Protistans are eukaryotic organisms. Eukaryotic cells typically have linear DNA organized into chromosomes. Thus, this option is incorrect.

4. **Option (C) Plant cells**:
- Plant cells are also eukaryotic and possess linear DNA in their chromosomes. Therefore, this option is incorrect.

5. **Option (D) Animal cells**:
- Similar to plant cells, animal cells are eukaryotic and contain linear DNA. Thus, this option is also incorrect.

6. **Conclusion**:
- Based on the analysis above, the only option that correctly identifies the presence of double-stranded circular DNA is **(A) Prokaryotic cells**.

**Final Answer**: (A) Prokaryotic cells

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