what is the common type of genetic material of phytophagineae?

Options

A. ds RNA
B. ss DNA
C. ds DNA
D. ssRNA

Answer

To answer the question about the common type of genetic material of Phytophaginae, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Phytophaginae**:
- Phytophaginae refers to a group of viruses that are parasitic on plants.
- The term "phyto" indicates a relation to plants, while "phagyny" suggests parasitism.

2. **Identifying the Type of Genetic Material in Viruses**:
- Viruses can have different types of genetic material, which include DNA and RNA.
- They can also be single-stranded or double-stranded.

3. **Common Genetic Material in Phytophaginae**:
- Most plant viruses, including those in the Phytophaginae group, typically contain RNA as their genetic material.
- Specifically, the common type of RNA found in these viruses is single-stranded RNA (ssRNA).

4. **Evaluating the Options**:
- Given the options:
- Double-stranded RNA (incorrect)
- Single-stranded DNA (incorrect)
- Double-stranded DNA (incorrect)
- Single-stranded RNA (correct)
- The correct answer is single-stranded RNA.

5. **Conclusion**:
- Therefore, the common type of genetic material of Phytophaginae is single-stranded RNA.

### Final Answer:
The common type of genetic material of Phytophaginae is **single-stranded RNA**.

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