Eucaryotes possess ribosomes

Options

A. 60 S
B. 70 S
C. 80 S
D. Both B and C

Answer

### Step-by-Step Solution:

1. **Understanding Ribosomes**: Ribosomes are essential cellular structures responsible for protein synthesis. They are often referred to as the "protein factories" of the cell.

2. **Types of Ribosomes**: Ribosomes can be classified based on their sedimentation coefficients, which are measured in Svedberg units (S). The two main types of ribosomes found in eukaryotic cells are:
- **80S Ribosomes**: These are the ribosomes found in the cytoplasm of eukaryotic cells. They consist of a smaller subunit (40S) and a larger subunit (60S).
- **70S Ribosomes**: These ribosomes are found in organelles such as mitochondria and chloroplasts, which have their own genetic material and machinery for protein synthesis.

3. **Identifying the Correct Answer**: The question asks about the types of ribosomes present in eukaryotes. Since eukaryotes possess both 80S ribosomes (in the cytoplasm) and 70S ribosomes (in mitochondria and chloroplasts), the correct answer is that eukaryotes possess both types of ribosomes.

4. **Conclusion**: Therefore, the correct answer to the question is "both B and C," indicating that eukaryotes have both 70S and 80S ribosomes.