Plasmids are founds naturally in

Options

A. Viruses
B. Chloroplasts
C. Chromosomes
D. Bacteria.

Answer

**Step-by-Step Solution:**

1. **Understanding Plasmids**: Plasmids are small, circular pieces of DNA that are separate from the chromosomal DNA. They can replicate independently within a cell.

2. **Identifying Where Plasmids are Found**: Plasmids are primarily found in prokaryotic organisms, particularly in bacteria. They can also be found in some archaea and eukaryotic organisms, such as yeast and plants.

3. **Analyzing the Options**:
- **Viruses**: Plasmids are not found in viruses. Viruses have their own genetic material but do not contain plasmids.
- **Chloroplasts**: While chloroplasts contain their own DNA, they do not contain plasmids in the same way bacteria do.
- **Chromosomes**: Chromosomes are the main genetic structures in cells, and plasmids are separate from them.
- **Bacteria**: This is the correct answer, as plasmids are commonly found in bacteria and are an important tool in genetic engineering.

4. **Conclusion**: Based on the analysis, the correct answer to the question "Plasmids are found naturally in" is **bacteria**.

**Final Answer**: Bacteria (Option 4).

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