Ribosomes take part in protein synthesis in

Options

A. Viruses
B. Prokaryotes
C. Both prokaryotes and eukryotes
D. Eukaryotes only

Answer

**Step-by-Step Solution:**

1. **Understanding Ribosomes**: Ribosomes are essential cellular structures responsible for protein synthesis. They are composed of ribosomal RNA (rRNA) and proteins.

2. **Identifying Organisms**: Ribosomes are found in all living cells. We need to determine in which types of organisms ribosomes participate in protein synthesis.

3. **Types of Organisms**:
- **Viruses**: Viruses do not have ribosomes. They lack their own cellular machinery and rely on host cells to synthesize proteins.
- **Prokaryotes**: Prokaryotic cells (like bacteria) contain ribosomes, specifically 70S ribosomes, which are involved in protein synthesis.
- **Eukaryotes**: Eukaryotic cells (like plant and animal cells) also contain ribosomes, specifically 80S ribosomes, which perform the same function of protein synthesis.

4. **Function of Ribosomes**: Regardless of the type of organism, the primary function of ribosomes remains the same: they are involved in translating messenger RNA (mRNA) into proteins.

5. **Evaluating Options**:
- **Viruses**: Incorrect, as they do not have ribosomes.
- **Prokaryotes**: Partially correct, but does not include eukaryotes.
- **Both Prokaryotes and Eukaryotes**: Correct, as ribosomes in both types of cells participate in protein synthesis.
- **Eukaryotes Only**: Incorrect, as this excludes prokaryotes.

6. **Conclusion**: The correct answer is that ribosomes take part in protein synthesis in both prokaryotes and eukaryotes.

**Final Answer**: Both prokaryotes and eukaryotes.

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