The nucleoprotein fibres present in the inter phase nucleus are

Options

A. Chromatin
B. Chromosome
C. Nucleosome
D. Centromere

Answer

To answer the question about the nucleoprotein fibers present in the interphase nucleus, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Interphase Nucleus**:
- The interphase nucleus is the stage of the cell cycle when the cell is not dividing. During this phase, the genetic material is not condensed into chromosomes but is instead in a more relaxed form.

2. **Identifying Nucleoprotein Fibers**:
- The term "nucleoprotein fibers" refers to structures within the nucleus that are composed of both nucleic acids (DNA) and proteins.

3. **Recognizing Chromatin**:
- The primary form of nucleoprotein fibers in the interphase nucleus is chromatin. Chromatin consists of DNA wrapped around histone proteins, forming a complex that allows for the organization and regulation of genetic material.

4. **Function of Chromatin**:
- Chromatin plays a crucial role in packaging DNA into a smaller volume to fit in the nucleus, protecting the DNA structure and sequence, and regulating gene expression and DNA replication.

5. **Conclusion**:
- Therefore, the nucleoprotein fibers present in the interphase nucleus are called chromatin.

### Final Answer:
The nucleoprotein fibers present in the interphase nucleus are called **chromatin**.

---