The kinetic proofreading of aminoacyl-tRNA synthetases involves
a. hydrolysis of aminoacyl-tRNAs due to an incorrect amino acid.
b. rejection of incorrect amino acids before aminoacylation.
c. hydrolysis of aminoacyl-tRNAs due to an incorrect tRNA.
d. rejection of noncognate tRNAs before aminoacylation.
e. hydrolysis of aminoacyl-tRNAs due to incorrect codon-anticodon pairing.
Ans: d
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