The genome of lnfluenza virus is a:

Options

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

Answer

To determine the genome type of the influenza virus, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Virus**: We are discussing the influenza virus, which is responsible for causing influenza (the flu).

2. **Understand Viral Genomes**: Viruses can have different types of genomes, including:
- Single-stranded RNA (ssRNA)
- Double-stranded RNA (dsRNA)
- Single-stranded DNA (ssDNA)
- Double-stranded DNA (dsDNA)

3. **Determine the Type of RNA**: Among the RNA viruses, they can be further categorized into:
- Positive-sense single-stranded RNA (ssRNA+): This type can be directly translated into proteins.
- Negative-sense single-stranded RNA (ssRNA-): This type must be converted into positive-sense RNA before it can be translated.

4. **Research Influenza Virus**: The influenza virus is known to have a genome that consists of single-stranded RNA.

5. **Identify the Sense of RNA**: The influenza virus specifically has a negative-sense single-stranded RNA genome. This means that its RNA cannot be directly translated into proteins and must first be converted into a complementary positive-sense RNA.

6. **Conclusion**: Therefore, the genome of the influenza virus is classified as single-stranded RNA negative (ssRNA-).

### Final Answer:
The genome of the influenza virus is single-stranded RNA negative (ssRNA-).

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