Question

Class II aminoacyl-tRNA synthetases add the aa to the __'-OH of the terminal adenylate.

A) 2'
B) 3'
C) 4'
D) 5'

Answer 1

Class II aminoacyl-tRNA synthetases attach amino acids to the 3'-OH of the tRNA's terminal adenylate which is critical for the tRNA charging process.

Step-by-step explanation:

Class II aminoacyl-tRNA synthetases add the amino acid to the 3'-OH of the terminal adenylate. This addition of an amino acid to the end of a tRNA molecule is a crucial part of the process called tRNA "charging".

During this process, an enzyme named aminoacyl tRNA synthetase catalyzes the attachment of a specific amino acid to the 3' end of tRNA, facilitating the accurate translation of mRNA into proteins.