Which one has ssRNA ?

Options

A. `phi xx 174`
B. `T_(2)` bacteriophage
C. Pox virus
D. TMV.

Answer

To determine which option has single-stranded RNA (ssRNA), we can analyze each of the given options:

1. **Phi X 174**: This is a bacteriophage, which is known to have double-stranded DNA as its genetic material. Therefore, this option does not have ssRNA.

2. **T2 Bacteriophage**: Similar to Phi X 174, T2 is also a bacteriophage that contains double-stranded DNA. Thus, this option also does not have ssRNA.

3. **Pox Virus**: Pox viruses are known to have double-stranded DNA as their genetic material. Hence, this option does not have ssRNA.

4. **TMV (Tobacco Mosaic Virus)**: TMV is a well-known plant virus that specifically affects tobacco plants. It is characterized by having single-stranded RNA as its genetic material.

Based on the analysis of each option, the only virus that has ssRNA is **TMV (Tobacco Mosaic Virus)**.

**Final Answer**: TMV (Tobacco Mosaic Virus) has ssRNA.

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