RNA is not genetic material in:-

Options

A. Tobacco mosaic virus
B. QB bacterio phage
C. Both (1) & (2)
D. Bacteria

Answer

To solve the question "RNA is not genetic material in:", we need to analyze the options provided and understand the role of RNA and DNA in different organisms.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Tobacco mosaic virus
- QB bacteriophage
- Both one and two
- Bacteria

2. **Understand the Genetic Material in Viruses**:
- **Tobacco Mosaic Virus (TMV)**: This is a well-known virus that contains RNA as its genetic material.
- **QB Bacteriophage**: This is a type of bacteriophage that also has RNA as its genetic material.

3. **Understand the Genetic Material in Bacteria**:
- **Bacteria**: In bacteria, the genetic material is primarily DNA (deoxyribonucleic acid). Most bacteria have their DNA organized in a single circular chromosome.

4. **Analyze the Question**: The question asks where RNA is not the genetic material. Since both the Tobacco mosaic virus and QB bacteriophage use RNA as their genetic material, they do not fit the criteria of the question.

5. **Conclusion**: The only option left is bacteria, which uses DNA as its genetic material. Therefore, the correct answer to the question is **bacteria**.

### Final Answer:
RNA is not genetic material in **bacteria**.

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