In general plant viruses have-

Options

A. Single strand RNA
B. ds RNA
C. ssDNA
D. ds RNS

Answer

**Step-by-Step Solution:**

1. **Understanding Plant Viruses**: Plant viruses are pathogens that infect plants and can cause various diseases. They are composed of nucleic acids and proteins.

2. **Identifying the Types of Nucleic Acids**: Viruses can have different types of nucleic acids in their genomes, including:
- Single-stranded RNA (ssRNA)
- Double-stranded RNA (dsRNA)
- Single-stranded DNA (ssDNA)
- Double-stranded DNA (dsDNA)

3. **Analyzing the Options**: The question provides four options regarding the type of nucleic acid found in plant viruses:
- Option 1: Single-stranded RNA
- Option 2: Double-stranded RNA
- Option 3: Single-stranded DNA
- Option 4: Double-stranded DNA (assuming this is the correct interpretation of the repeated option)

4. **Researching Common Characteristics of Plant Viruses**: Research indicates that the majority of plant viruses are known to have single-stranded RNA as their genetic material. Some plant viruses may also contain double-stranded RNA, but single-stranded RNA is more prevalent.

5. **Conclusion**: Based on the information gathered, the most common type of nucleic acid found in plant viruses is single-stranded RNA.

**Final Answer**: In general, plant viruses have single-stranded RNA (Option 1).

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