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DHU loop in tRNA is referred as...

DHU loop in tRNA is referred as

A

Aminoacyl synthetase binding loop

B

Ribosomal binding loop

C

Anticodon loop

D

Both (2) and (3)

Text Solution

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The correct Answer is:
To answer the question "DHU loop in tRNA is referred as," let's break down the information step by step. ### Step-by-Step Solution: 1. **Understanding tRNA Structure**: - Transfer RNA (tRNA) is a type of RNA that plays a crucial role in protein synthesis by bringing amino acids to the ribosome. - It has a specific structure that includes several loops. 2. **Identifying the Loops in tRNA**: - tRNA has multiple loops, each with a specific function: - **Amino Acid Arm (Amino Acid Loop)**: This is where the amino acids attach for polypeptide synthesis. - **TΨC Loop (T-Si-C Loop)**: This loop is involved in ribosome attachment. - **Anticodon Loop**: This loop contains three nitrogenous bases that recognize the codon on messenger RNA (mRNA). - **Dihydrouridine Loop (DHU Loop)**: This loop contains dihydrouridine and is important for the binding of aminoacyl synthetase. 3. **Function of the DHU Loop**: - The DHU loop is specifically referred to as the site where aminoacyl synthetase binds. This enzyme is essential for "charging" the tRNA with the appropriate amino acid. 4. **Conclusion**: - Therefore, the DHU loop in tRNA is referred to as the site for aminoacyl synthetase binding. ### Final Answer: The DHU loop in tRNA is referred to as the site for aminoacyl synthetase binding. ---
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