Biogenesis of eucaryotic Ribosomes takes place in -

Options

A. Mitochondria
B. Chloroplast
C. Both (A) and (B)
D. Nucleolus

Answer

To answer the question "Biogenesis of eukaryotic ribosomes takes place in -", we will analyze each option provided:

1. **Mitochondria**:
- Mitochondria are known as the powerhouse of the cell, primarily involved in cellular respiration and ATP production. They do not play a role in the synthesis or assembly of ribosomes.
- **Conclusion**: This option is incorrect.

2. **Chloroplast**:
- Chloroplasts are organelles found in plant cells that are responsible for photosynthesis, the process by which plants convert light energy into chemical energy. They are not involved in ribosome biogenesis.
- **Conclusion**: This option is also incorrect.

3. **Both A and B**:
- Since both mitochondria and chloroplasts do not contribute to ribosome biogenesis, this option is incorrect as well.
- **Conclusion**: This option is incorrect.

4. **Nucleolus**:
- The nucleolus is a specialized structure within the nucleus of eukaryotic cells. It is known as the ribosome factory because it is the site where ribosomal RNA (rRNA) is synthesized and combined with proteins to form ribosomal subunits. This makes the nucleolus the correct answer for the biogenesis of eukaryotic ribosomes.
- **Conclusion**: This option is correct.

**Final Answer**: The biogenesis of eukaryotic ribosomes takes place in the **Nucleolus**.

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