Which statement is TRUE regarding protein synthesis?
A) Ribosomal proteins catalyze peptide bond formation in the growing polypeptide chain.
B) The 23S rRNA catalyzes peptide bond formation in the growing polypeptide chain.
C) Transfer RNAs catalyze peptide bond formation in the growing polypeptide chain.
D) Messenger RNA catalyzes peptide bond formation in the growing polypeptide chain.

Question

Quizplus · Accepted Answer

The 23S rRNA, part of the ribosomal RNA in the larger subunit of the ribosome, acts as a ribozyme to catalyze peptide bond formation during protein synthesis. This is a key component of the ribosome's peptidyl transferase activity.

Which Statement Is TRUE Regarding Protein Synthesis