T.M.V. contains :-

Options

A. ssRNA
B. dsRNA
C. dsDNA
D. ssDNA

Answer

### Step-by-Step Solution:

1. **Identify TMV**: TMV stands for Tobacco Mosaic Virus. It is important to understand what TMV is to answer the question correctly.

2. **Type of Virus**: TMV is classified as a positive-sense single-stranded RNA virus. This means that its genetic material is composed of RNA and can be directly translated into proteins by the host's ribosomes.

3. **Host Range**: TMV infects a wide range of plants, but it is particularly known for infecting tobacco plants. It can also affect other plants in the Solanaceae family, which includes tomatoes, peppers, and eggplants.

4. **Symptoms of Infection**: The infection caused by TMV leads to characteristic symptoms, including mosaic patterns on the leaves, which appear as mottling and discoloration. These symptoms are indicative of viral infection and can affect the overall health of the plant.

5. **Conclusion**: In summary, TMV contains a positive-sense single-stranded RNA genome and is known for causing mosaic disease in tobacco and other related plants.