RNA is genetic material in

Options

A. `T_(2)` virus
B. `T_(4)` virus
C. SV - 400
D. TMV .

Answer

### Step-by-Step Solution:

1. **Understanding Genetic Material**:
- Genetic material in organisms can be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid).

2. **Identifying RNA Viruses**:
- The question specifically asks for examples of viruses that have RNA as their genetic material.

3. **Analyzing the Given Options**:
- Among the options, we need to identify which virus is known to have RNA as its genetic material.

4. **Example of RNA Virus**:
- One of the examples provided is the Tobacco Mosaic Virus (TMV).
- TMV is known to cause mosaic disease in tobacco plants and is composed of RNA encapsulated in a protein coat.

5. **Conclusion**:
- Since TMV is an RNA virus, it is the correct answer to the question. The other viruses mentioned are examples of DNA viruses.

### Final Answer:
- RNA is the genetic material in the Tobacco Mosaic Virus (TMV).

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