The nucleoprotein present in nucleus is

Options

A. Ribosome
B. Histone
C. Insulin
D. None of these

Explanation

To answer the question regarding the nucleoprotein present in the nucleus, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Nucleus**: The nucleus is often referred to as the "brain" of the cell because it controls cellular activities and contains the genetic material.

2. **Identifying Nucleoproteins**: Nucleoproteins are proteins that are associated with nucleic acids (DNA and RNA). In the context of the nucleus, we are primarily concerned with those associated with DNA.

3. **Role of DNA**: DNA (deoxyribonucleic acid) is the genetic material that carries instructions for protein synthesis and other cellular functions. It is negatively charged.

4. **Histone Proteins**: To package the long strands of DNA efficiently within the nucleus, DNA wraps around proteins called histones. These histones are positively charged and help in condensing the DNA into a compact structure.

5. **Formation of Nucleosomes**: The combination of DNA and histone proteins forms units called nucleosomes, which resemble beads on a string. These nucleosomes further coil and fold to form chromatin, the material that makes up chromosomes.

6. **Conclusion**: Given the context of the question, the nucleoprotein present in the nucleus is histone.

### Final Answer:
The nucleoprotein present in the nucleus is **histone**.

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