rRNA present in 60 S subunit of ribosome is

Options

A. 5 S
B. 5.8 S
C. 28 S
D. All the above

Answer

To answer the question regarding the rRNA present in the 60S subunit of the ribosome, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Ribosomes**:
- Ribosomes are the cellular machinery responsible for protein synthesis. They consist of two subunits: a larger subunit and a smaller subunit. In eukaryotes, the larger subunit is referred to as the 60S subunit, while the smaller subunit is the 40S subunit.

2. **Identify the Components of the 60S Subunit**:
- The 60S subunit is composed of several types of ribosomal RNA (rRNA) and proteins. The key rRNA components of the 60S subunit include:
- 5S rRNA
- 5.8S rRNA
- 28S rRNA

3. **List the Characteristics of Each rRNA**:
- **5S rRNA**: Approximately 120 nucleotides long.
- **5.8S rRNA**: Approximately 160 nucleotides long.
- **28S rRNA**: Approximately 4700 nucleotides long.

4. **Conclusion**:
- Since the question asks for the rRNA present in the 60S subunit, we can conclude that it includes 5S, 5.8S, and 28S rRNA. Therefore, the correct answer is "all of the above."

### Final Answer:
The rRNA present in the 60S subunit of the ribosome is 5S, 5.8S, and 28S rRNA. Thus, the correct answer is **all of the above**.

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