Which of the following is a part of nu-body ?

Options

A. Histone octamer
B. DNA + Core of nucleosome
C. H1 prtoein
D. `1.(3)/(4)` turn of DNA + H1 prtoein

Answer

To answer the question "Which of the following is a part of the nu-body?", we need to understand what a nu-body is and its components.

### Step-by-Step Solution:

1. **Understanding Nu-body**:
- The nu-body, also known as the nucleosome, is a structural unit of DNA packaging in eukaryotic cells. It consists of DNA wrapped around a core of histone proteins.

2. **Components of Nu-body**:
- The core of the nu-body is made up of histone proteins. There are five types of histone proteins: H1, H2A, H2B, H3, and H4.
- The histones H2A, H2B, H3, and H4 form an octamer (a complex of eight proteins) around which the DNA is wrapped.

3. **Identification of the Correct Answer**:
- The question asks which of the options is a part of the nu-body.
- The histone octamer (composed of H2A, H2B, H3, and H4) is indeed a part of the nu-body.
- H1 histone is not part of the octamer; instead, it helps in the further packaging of DNA but is not included in the core structure of the nu-body.

4. **Conclusion**:
- Based on the components of the nu-body, the correct answer to the question is the histone octamer.

### Final Answer:
The histone octamer is a part of the nu-body.

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