Talk about the elongation process of translation.

Lengthening of polypeptide chain by one amino acid per elongation cycle. role of small subunit is to decode the codons while role of large one is peptide-bond synthesis. Second charged tRNA with specific anticodon will go to A site, once bonded to the codon, large subunit catalyzes peptide bonds between the two amino acids present at A and P site tRNA by hydrolyzing the bond between aa and tRNA 3'OH. The dipeptide is attached to tRNA at A site which moves to the P site and the initial tRNA moves to E site to exit, then ribosome-dipeptide-tRNAs move in a distance of a codon (3 nucleotides) P site=peptide A site = amino acid