Topic: Transcription, genetic code, translation, protein biosynthesis· Genetics and Evolution

Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria?

1. 18 S rRNA

2. 23 S rRNA

3. 5·8 S rRNA

4. 5 S rRNA

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Answer: 2. 23 S rRNA

In bacteria, the 23S rRNA of the large subunit acts as the peptidyl transferase ribozyme that forms peptide bonds, besides being a structural part of the ribosome.

18S, 5.8S are eukaryotic rRNAs, and 5S has no catalytic role.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria?

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