Once a peptide has been formed between the amino acid attached to the tRNA in the P site and the amino acid associated with the tRNA in the A site,which process on the list occurs next?
A)translocation
B)reading of the next codon of mRNA
C)initiation
D)The codon-anticodon hydrogen bonds holding the tRNA in the A site are broken.

Question

Quizplus · Accepted Answer

After peptide bond formation, the ribosome undergoes translocation, which moves the tRNAs in the P and A sites to the E and P sites, respectively. This movement also shifts the mRNA by one codon, making the next codon available for the A site tRNA to read. The hydrogen bonds between the codon and anticodon are not broken until after the amino acid is added to the growing polypeptide chain. Initiation occurs at the start of translation and is not relevant at this point in the process.

Once a Peptide Has Been Formed Between the Amino Acid