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