Plant viruses mostly contain

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of genetic material that is predominantly found in plant viruses.

2. **Identifying Virus Genetic Material**: Viruses can have different types of genetic material. They can either be DNA or RNA, and these can be single-stranded or double-stranded.

3. **Focusing on Plant Viruses**: The question specifically pertains to plant viruses, which are known to cause diseases in plants.

4. **Researching Plant Viruses**: Upon researching, it is found that the majority of plant viruses are known to contain RNA as their genetic material.

5. **Determining the Type of RNA**: Among the types of RNA, it is established that most plant viruses have single-stranded RNA (ssRNA) as their genetic material.

6. **Selecting the Correct Option**: Given the options provided:
- A) Single-stranded RNA
- B) Double-stranded RNA
- C) Single-stranded DNA
- D) Double-stranded DNA

The correct answer is option A, which indicates that plant viruses mostly contain single-stranded RNA.

**Final Answer**: Plant viruses mostly contain single-stranded RNA (Option A).

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