Double stranded RNA is found in

Options

A. Influenza Virus
B. Reovirus
C. Polio Virus
D. `T_(4)` Virus

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Types of Viruses:**
- Viruses can be classified into two main categories based on their genetic material: RNA viruses and DNA viruses.
- RNA viruses can further be divided into two types: double-stranded RNA (dsRNA) viruses and single-stranded RNA (ssRNA) viruses.
- Similarly, DNA viruses can be classified into double-stranded DNA (dsDNA) and single-stranded DNA (ssDNA) viruses.

2. **Identifying Double-Stranded RNA Viruses:**
- Among the RNA viruses, double-stranded RNA viruses are less common than single-stranded RNA viruses.
- One of the notable families of double-stranded RNA viruses is the Reoviridae family.

3. **Example of Double-Stranded RNA Virus:**
- An example of a double-stranded RNA virus is the Reovirus. Reoviruses are known to have a segmented double-stranded RNA genome.
- Other viruses mentioned, such as the polio virus and influenza virus, are single-stranded RNA viruses. The T4 virus is a DNA virus.

4. **Conclusion:**
- Therefore, the correct answer to the question "Double-stranded RNA is found in" is Reoviruses.

**Final Answer:**
- Double-stranded RNA is found in Reoviruses (Option B).

---