Class 11 NEET Biology Biological Classification Questions Part 2

(d): The 23S rRNA is a component of the large prokaryotic (bacterial cell) subunit (50S). The ribosomal peptidyl transferase activity resides in this rRNA and acts as a ribozyme (catalytic RNA ). In eukaryotic cells, the 60s (28S component ) ribosome subunit contains the peptidyl transferase component and acts as the ribozyme.