Which one of the following carries extra nuclear genetic material ?

Options

A. Golgi apparatus
B. Ribosomes
C. Chromosome
D. Plastids/Mitochondria

Answer

To answer the question "Which one of the following carries extra nuclear genetic material?", follow these steps:

### Step-by-Step Solution:

1. **Understanding Extra Nuclear Genetic Material**:
- Extra nuclear genetic material refers to genetic material that is located outside the nucleus of a cell. This is distinct from the chromosomal DNA found within the nucleus.

2. **Identifying the Options**:
- The options provided are:
- Golgi apparatus
- Ribosomes
- Chromosome
- Plastids
- Mitochondria

3. **Analyzing Each Option**:
- **Golgi apparatus**: This is involved in modifying, sorting, and packaging proteins and lipids but does not contain genetic material.
- **Ribosomes**: These are the sites of protein synthesis and do not contain genetic material.
- **Chromosome**: Chromosomes are structures within the nucleus that contain genetic material (DNA), so they do not qualify as extra nuclear.
- **Plastids**: These are organelles found in plant cells and some protists. They include chloroplasts, which contain their own DNA, thus representing extra nuclear genetic material.
- **Mitochondria**: These are known as the powerhouse of the cell and also contain their own DNA, making them another source of extra nuclear genetic material.

4. **Conclusion**:
- Both plastids and mitochondria carry extra nuclear genetic material. Therefore, the correct answer to the question is **Plastids and Mitochondria**.

### Final Answer:
**Plastids and Mitochondria carry extra nuclear genetic material.**

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