Nucleolus takes part in

Options

A. Ribosome synthesis
B. DNA replication
C. Chromosome synthesis
D. Chromatid separation .

Answer

**Step-by-Step Solution:**

1. **Understanding the Nucleolus**: The nucleolus is a dense structure found within the nucleus of eukaryotic cells. It is primarily involved in the production and assembly of ribosomes.

2. **Identifying Functions**: The main function of the nucleolus is ribosome synthesis. It synthesizes ribosomal RNA (rRNA) and combines it with proteins to form ribosomal subunits, which are then transported to the cytoplasm for protein synthesis.

3. **Evaluating the Options**:
- **Option 1: Ribosome synthesis** - This is correct, as the nucleolus is directly involved in the formation of ribosomes.
- **Option 2: DNA Replication** - This is incorrect; DNA replication occurs in the nucleus but not specifically in the nucleolus.
- **Option 3: Chromosome synthesis** - This is also incorrect; chromosomes are formed from chromatin in the nucleus, not specifically in the nucleolus.
- **Option 4: Chromatin separation** - This is incorrect as well; chromatin separation is a process that occurs during cell division and is not a function of the nucleolus.

4. **Conclusion**: Based on the evaluation of the options, the correct answer is that the nucleolus takes part in ribosome synthesis.

**Final Answer**: The nucleolus takes part in ribosome synthesis.

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