Which of following describes proofreading for the addition of amino acids (AAs) to the growing peptide?
A) An RNA component of the ribosome ensures that the correct AA is associated with the A site before addition occurs.
B) An RNA component of the ribosome ensures that the correct AA has been added,but before the peptidyl-tRNA is shifted to the P site.
C) The EF-Tu • GTP complex ensures that the correct AA is associated with the A site before addition occurs.
D) EF-G ensures that the correct AA has been added,but before the peptidyl-tRNA is shifted to the P -site.
E) No proofreading of this process occurs.
Correct Answer:
Verified
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