Which of the following best describes the method used for error minimization or proofreading to ensure the correct charging of the tRNAs?
A)The enzymes catalyzing the addition always proofread after the first step.
B)The enzymes catalyzing the addition always proofread after the second step.
C)Some of the enzymes catalyzing the addition proofread after the first step,some after the second.
D)Ribosomes themselves proofread the linkage when the AA-tRNA reaches the A site.
E)No proofreading of this process occurs.

Question

Quizplus · Accepted Answer

The enzymes responsible for charging tRNAs (aminoacyl-tRNA synthetases) have different mechanisms for ensuring accuracy, including proofreading steps that can occur after the first or second step of the charging process, depending on the specific enzyme.

Which of the Following Best Describes the Method Used for Error