What is false ?

Options

A. TMV has double stranded RNA molecule
B. Most plant viruses are RNA viruses
C. Bacteriophage has a double stranded DNA molecle
D. Most animal viruses are DNA viruses.

Answer

To determine which statement is false among the provided options regarding viruses, we can analyze each option step by step.

### Step-by-Step Solution:

1. **Analyze Option 1**:
- The statement is: "TMV has double-stranded RNA molecule."
- TMV stands for Tobacco Mosaic Virus. It is known that TMV has single-stranded RNA (ssRNA) as its genetic material. Therefore, this statement is false.

2. **Analyze Option 2**:
- The statement is: "Most plant viruses are RNA viruses."
- This statement is true because the majority of plant viruses, including TMV, are indeed RNA viruses.

3. **Analyze Option 3**:
- The statement is: "Bacteriophage has a double-stranded DNA molecule."
- This statement is also true. Bacteriophages, which are viruses that infect bacteria, typically have double-stranded DNA (dsDNA) as their genetic material.

4. **Analyze Option 4**:
- The statement is: "Most animal viruses are DNA viruses."
- This statement is misleading. While there are many DNA viruses that infect animals, a significant number of animal viruses are RNA viruses as well. Therefore, this statement is not entirely accurate, but it is not as clearly false as the first option.

### Conclusion:
The false statement among the options is **Option 1**: "TMV has double-stranded RNA molecule."