t-RNA attach to larger subunit of ribosomes with the help of which loop

Options

A. DHU-loop
B. T`Psi` C loop
C. Anticodon loop
D. Minor loop

Answer

To answer the question regarding which loop of tRNA attaches to the larger subunit of ribosomes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding tRNA Structure**:
- tRNA (transfer RNA) has a specific three-dimensional structure that includes several loops, each serving a different function. The relevant loops include the D-loop, T-loop (or TΨC loop), and the anticodon loop.

2. **Identifying the Loops**:
- The **D-loop** (D-arm) is involved in the recognition and binding of the aminoacyl-tRNA synthetase enzyme, which attaches the appropriate amino acid to the tRNA.
- The **T-loop** (TΨC loop) is crucial for the binding of tRNA to the ribosome. It contains the recognition site that facilitates the attachment of tRNA to the ribosomal subunit.
- The **anticodon loop** contains the anticodon that pairs with the corresponding codon on the mRNA during translation.

3. **Analyzing the Options**:
- The question asks specifically about the loop that helps tRNA attach to the larger subunit of the ribosome.
- Since the T-loop is responsible for this interaction, it is the correct answer.

4. **Conclusion**:
- Therefore, the loop that helps tRNA attach to the larger subunit of the ribosome is the **T-loop**.

### Final Answer:
The T-loop (TΨC loop) of tRNA helps it attach to the larger subunit of the ribosome.

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