Which of the following shows coiled RNA strand and capsomeres

Options

A. Retrovirus
B. Polio virus
C. Tobacco mosaic virus
D. Measles -virus

Explanation

To solve the question, "Which of the following shows coiled RNA strand and capsomeres?" we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which virus has a coiled RNA strand and capsomeres. Capsomeres are the protein subunits that make up the capsid of a virus.

2. **Analyze the Options**:
- **Option A: Retrovirus**: Retroviruses have single-stranded RNA but do not typically have a coiled structure; they are usually spherical or conical in shape.
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