Question

the following model represents the elongation stage of protein translation.
which arrow represents a trna leaving the ribosome after transferring an amino acid to a growing polypeptide chain?
choose 1 answer:
a arrow 1
b arrow 2
c arrow 3
d arrow 4

Explanation:

In the elongation stage of protein translation, tRNA carries an amino acid to the ribosome, transfers it to the growing polypeptide chain, and then leaves. Arrow 3 shows a tRNA leaving the ribosome after transferring its amino acid. Arrow 1 is a tRNA arriving, Arrow 2 is peptide bond formation, and Arrow 4 is a new tRNA arriving. So the correct arrow is Arrow 3 (Option C).

Answer:

C. Arrow 3