Nucleolus is the site for :-

Options

A. Protein synthesis
B. Ribosomal RNA synthesis
C. Messenger RNA synthesis
D. Chromatin synthesis

Answer

**Step-by-Step Solution:**

1. **Identify the Organelle**: The question asks about the nucleolus, which is a specific structure found within the nucleus of eukaryotic cells.

2. **Understand the Structure**: The nucleolus is a non-membrane bound organelle that consists mainly of RNA and proteins. This distinguishes it from other organelles that are surrounded by membranes.

3. **Determine the Function**: The primary function of the nucleolus is the synthesis of ribosomal RNA (rRNA). This is crucial because rRNA is a key component of ribosomes, which are essential for protein synthesis.

4. **Link to Protein Synthesis**: While the nucleolus itself does not synthesize proteins directly, it produces rRNA, which is necessary for the formation of ribosomes. Ribosomes then facilitate the translation process, where proteins are synthesized from amino acids.

5. **Evaluate Other Options**: The question may provide multiple-choice answers. The other options might include:
- Protein synthesis (incorrect, as this occurs in ribosomes).
- Messenger RNA synthesis (incorrect, as this occurs in the nucleus but not specifically in the nucleolus).
- Chromatin structure (incorrect, as chromatin is related to DNA and not the function of the nucleolus).

6. **Conclude the Answer**: Based on the information, the correct answer is that the nucleolus is the site for ribosomal RNA synthesis.

**Final Answer**: The nucleolus is the site for ribosomal RNA synthesis.

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