Find the odd one out:

Options

A. `H_(2)A`
B. `H_(3)`
C. `H_(2)B`
D. `H_(1)`

Answer

To solve the question of finding the odd one out among the histone proteins, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: The question is asking to identify which histone protein does not belong to the same category as the others. We need to focus on the role of each histone protein mentioned in the options.

2. **Identify the Histone Proteins**: The histone proteins typically involved in the formation of the nucleosome core are:
- H2A
- H2B
- H3
- H4

These proteins form an octamer, which is the core around which DNA is wrapped.

3. **Examine the Options**: The options provided are likely to include H2A, H2B, H3, and H1.

4. **Analyze Each Option**:
- **H2A**: Part of the nucleosome core.
- **H2B**: Part of the nucleosome core.
- **H3**: Part of the nucleosome core.
- **H1**: This histone is not part of the nucleosome core; instead, it binds to the linker DNA between nucleosomes.

5. **Conclusion**: Since H1 does not form part of the octamer structure of the nucleosome but instead serves a different function in DNA packaging, it is the odd one out.

### Final Answer:
The odd one out is **H1**.