In general zoophage or the virus that infect animals dose not have

Options

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

Answer

To solve the question regarding what zoophages (viruses that infect animals) do not have, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terminology**:
- The term "zoophage" refers to viruses that specifically infect animals. The prefix "zoo-" indicates animals, and "-phage" indicates a virus.

2. **Structure of Viruses**:
- Viruses generally consist of two main components: an outer protein coat (capsid) and nucleic acid (which can be either DNA or RNA).

3. **Types of Nucleic Acid in Viruses**:
- Viruses can have different types of nucleic acids:
- Single-stranded RNA (ssRNA)
- Double-stranded RNA (dsRNA)
- Double-stranded DNA (dsDNA)

4. **Exclusion of Single-Stranded DNA**:
- In the context of zoophages, it is important to note that they do not contain single-stranded DNA (ssDNA). This is because ssDNA can lead to structural issues that may prevent the virus from functioning properly.

5. **Evaluating the Options**:
- Given the options:
- Single-stranded RNA: This type is present in some viruses, so this option is incorrect.
- Double-stranded RNA: This type is present in some viruses, so this option is incorrect.
- Double-stranded DNA: This type is present in some viruses, so this option is incorrect.
- Single-stranded DNA: This type is not present in zoophages, making this the correct answer.

6. **Conclusion**:
- Therefore, the correct answer is that zoophages do not have single-stranded DNA.

### Final Answer:
Zoophages do not have single-stranded DNA.