Emma Valdez

Biology

15 December, 10:38

Place the following steps for the elongation of bacterial protein biosynthesis in the correct order:

1) GTP is hydrolyzed by elongation factor-Tu and the aminoacylated tRNA moves into the A site.

2) The peptidyl-tRNA translocates from the A site to the P site.

3) The charged aminoacylated tRNA and elongation factor-Tu are escorted into the A site.

4) The A site is aligned with the mRNA codon for the next amino acid.

5) Peptide bond formation takes place and the peptidyl chain is transferred to the peptidyl-tRNA to the aminoacylated tRNA, in a move catalyzed by peptidyltransferase.

6) The A site now accepts the elongated peptidyl-tRNA.

7) The previously deacylated tRNA is released from the E site.

A. 3, 4, 1, 7, 2, 5, 6B. 4, 3, 1, 5, 2, 7, 6C. 4, 3, 2, 1, 5, 7, 6D. 6, 3, 2, 5, 1, 7, 4