The common feature amongst nucleus, chloroplast and mitochondria is

Options

A. Lamellae
B. DNA
C. Cristae
D. All the above.

Answer

To determine the common feature among the nucleus, chloroplasts, and mitochondria, we can follow these steps:

### Step 1: Identify the Organelles
- The question asks about three specific organelles: the nucleus, chloroplasts, and mitochondria.

### Step 2: Analyze Each Organelle
- **Nucleus**: Contains the cell's genetic material (DNA) and is the control center of the cell.
- **Chloroplasts**: Found in plant cells, these organelles are responsible for photosynthesis and also contain their own DNA (ctDNA).
- **Mitochondria**: Known as the powerhouse of the cell, they generate energy and possess their own DNA (mtDNA).

### Step 3: Look for Common Features
- **DNA Presence**:
- The nucleus contains DNA as the primary genetic material.
- Both chloroplasts and mitochondria contain their own DNA, which is distinct from the nuclear DNA.

### Step 4: Eliminate Other Options
- Other features such as lamellae (only in chloroplasts) and cristae (only in mitochondria) cannot be considered common features.

### Step 5: Conclusion
- The common feature among the nucleus, chloroplasts, and mitochondria is that they all contain DNA. This DNA is crucial for their functions and is a defining characteristic of these organelles.

### Final Answer
The common feature amongst the nucleus, chloroplasts, and mitochondria is **DNA**.

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