Discussion
Translocation of the ribosome along the mRNA is catalysed by ________.
Answer: A
Correct answer: EF-G
EF-G, also called translocase, uses GTP hydrolysis to advance the ribosome by exactly one codon, shifting the tRNAs from the A and P sites to the P and E sites. Without it the ribosome would stall after forming each peptide bond.
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