Which one of the following also act as as a catalyst in a bacterial cell?
Correct answer: D. 23S rRNA
- A. 5S rRNA
- B. snRNA
- C. hnRNA
- D. 23S rRNA
Explanation
Among the options you provided, 23S rRNA also acts as a catalyst in a bacterial cell. Here's an explanation of each option:1. 5S rRNA: 5S ribosomal RNA is a component of the ribosome, which is involved in protein synthesis in both bacterial and eukaryotic cells. It plays a structural role in the ribosome but does not act as a catalyst.2. snRNA (small nuclear RNA): snRNAs are a class of RNA molecules found in the nucleus of eukaryotic cells. They are involved in processes like pre-mRNA splicing and do not typically act as catalysts.3. hnRNA (heterogeneous nuclear RNA): hnRNA is an intermediate molecule in the processing of pre-mRNA in eukaryotic cells. It undergoes modifications to become mature mRNA and does not act as a catalyst.4. 23S rRNA: 23S ribosomal RNA is part of the large subunit of the bacterial ribosome. It has peptidyl transferase activity, which catalyzes the formation of peptide bonds during protein synthesis. This catalytic activity makes it an essential component for the translation of genetic information into proteins in bacterial cells.So, 23S rRNA is unique among the options in that it acts as a catalyst in a bacterial cell, specifically in the ribosome during protein synthesis.
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