Influenza virus has

Options

A. Single stranded RNA (-)
B. Single stranded RNA (+)
C. Double stranded RNA
D. Single stranded DNA

Answer

To answer the question "Influenza virus has," we need to analyze the options provided and understand the characteristics of the influenza virus.

### Step-by-Step Solution:

1. **Identify the Virus Type**: The influenza virus is known to cause the disease influenza. It is classified as an RNA virus.

2. **Determine the RNA Structure**: The influenza virus genome consists of RNA. Specifically, it is made up of eight segments of RNA.

3. **Assess the Sense of RNA**: The RNA in the influenza virus is single-stranded and is classified as negative sense RNA. This means that the RNA cannot be directly translated into proteins. Instead, it must first be converted into a positive sense RNA strand.

4. **Understanding Positive vs. Negative Sense RNA**:
- **Positive Sense RNA**: This type of RNA can be directly translated into proteins, similar to mRNA.
- **Negative Sense RNA**: This type is complementary to mRNA and must be transcribed into a positive sense RNA before it can be translated into proteins.

5. **Conclusion**: Based on the characteristics of the influenza virus, the correct answer is that it has single-stranded RNA which is negative sense.

### Final Answer:
Influenza virus has single-stranded RNA which is negative sense.

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