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Which one of the following also acts as a catalyst in a bacterial cell?

1. 5s rRNA
2. sn RNA
3. hn RNA
4. 23s rRNA

Correct answer: 23s rRNA

Solution

23S rRNA is a ribozyme in the bacterial 50S ribosomal subunit; it catalyzes peptide bond formation during translation. The other RNAs listed are involved in processing or are not the catalytic component of the bacterial ribosome.

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