Polypeptide chain termination is enhanced by: (A) Stop codon, (B) Peptidyl transferase, (C) UAA, (D) All of these
Answer is D. Termination requires stop codon (UAA, UAG, UGA) and releasing factors .
Peptidyl transferase is also required which along with releasing factor hydrolyses peptide bond between tRNA at 'P' site and promotes the release of a newly synthesized polypeptide chain from ‘P’ site.