Which of the following statements is CORRECT ?

Options

A. Mitochondria contain circular DNA, but chloroplasts lack it.
B. Chloroplasts contains circular DNA, but mitochondria lack it
C. Neither mitochondria nor chloroplasts contain any DNA
D. Both mitochondria and chloroplasts contain circular DNA

Answer

To determine which statement is correct regarding mitochondria and chloroplasts, we can analyze the characteristics of both organelles step by step.

### Step-by-Step Solution:

1. **Understanding Mitochondria and Chloroplasts**:
- Both mitochondria and chloroplasts are membrane-bound organelles found in eukaryotic cells.
- They are known to have similarities with prokaryotic cells, particularly in their structure and genetic material.

2. **Presence of Circular DNA**:
- Mitochondria contain circular DNA, which is similar to the DNA found in bacteria.
- Chloroplasts also contain circular DNA, which is also similar to bacterial DNA.
- Therefore, the statement that "mitochondria contain circular DNA but not chloroplast" is incorrect.

3. **Evaluating the Statements**:
- **Statement 1**: Mitochondria contain circular DNA but not chloroplast. (Incorrect)
- **Statement 2**: Chloroplast contains circular DNA but mitochondria lack it. (Incorrect)
- **Statement 3**: Neither mitochondria nor chloroplast contain any DNA. (Incorrect)
- **Statement 4**: Both mitochondria and chloroplast contain circular DNA. (Correct)

4. **Conclusion**:
- The correct statement is that both mitochondria and chloroplasts contain circular DNA.

### Final Answer:
The correct statement is: **Both mitochondria and chloroplast contain circular DNA.**

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