A feature common to nucleus, chloroplast and mitochondria is at the presence of

Options

A. lamellae
B. cristae
C. nucleic acids
D. Nucleolus

Answer

To solve the question regarding the common feature present in the nucleus, chloroplast, and mitochondria, we will analyze each option provided and determine which one is correct.

### Step-by-Step Solution:

1. **Identify the Options**: The question asks for a feature common to the nucleus, chloroplast, and mitochondria. The options provided are:
- A) Lamellae
- B) Cristae
- C) Nucleic Acid
- D) Nucleolus

2. **Evaluate Option A: Lamellae**:
- Lamellae are structures found in chloroplasts, specifically referring to the thylakoid membranes. They are not present in the nucleus or mitochondria.
- **Conclusion**: This option is incorrect.

3. **Evaluate Option B: Cristae**:
- Cristae are the infoldings of the inner membrane of mitochondria. They are specific to mitochondria and do not exist in the nucleus or chloroplasts.
- **Conclusion**: This option is also incorrect.

4. **Evaluate Option C: Nucleic Acid**:
- Nucleic acids, specifically DNA, are present in the nucleus (as the genetic material) and also in both mitochondria and chloroplasts (where they contain their own DNA).
- **Conclusion**: This option is correct as it is a common feature among all three organelles.

5. **Evaluate Option D: Nucleolus**:
- The nucleolus is a structure within the nucleus involved in ribosomal RNA synthesis. It is not found in chloroplasts or mitochondria.
- **Conclusion**: This option is incorrect.

### Final Answer:
The correct answer is **C) Nucleic Acid**.