Which of the following statements is false ?

Options

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

Answer

To determine which statement is false among the given options, we will analyze each statement regarding viruses and their genetic material.

### Step-by-Step Solution:

1. **Identify the Statements**: We need to evaluate the following statements:
- TMV has a double-stranded DNA molecule.
- Most plant viruses are RNA viruses.
- Bacteriophage has a double-stranded DNA molecule.
- Most animal viruses are DNA viruses.

2. **Analyze the First Statement**:
- TMV refers to Tobacco Mosaic Virus.
- The genetic material of TMV is single-stranded RNA, not double-stranded DNA.
- Therefore, this statement is **false**.

3. **Analyze the Second Statement**:
- Most plant viruses are indeed RNA viruses.
- This is a true statement as many plant viruses, including TMV, have RNA as their genetic material.

4. **Analyze the Third Statement**:
- Bacteriophages are viruses that infect bacteria.
- They typically have double-stranded DNA as their genetic material.
- This statement is **true**.

5. **Analyze the Fourth Statement**:
- Most animal viruses do have DNA as their genetic material.
- For example, pox viruses are known to have double-stranded DNA.
- This statement is also **true**.

6. **Conclusion**:
- The only false statement among the options is the first one: "TMV has a double-stranded DNA molecule."

### Final Answer:
The false statement is: **TMV has a double-stranded DNA molecule.**

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