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Plastids

Which of the ...

Question

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

A

23s rRNA

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B

5.8S rRNA

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C

5s rRNA

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D

18s rRNA

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Solution

The correct option is A 23s rRNA
23S rRNA is a part of the 50S larger subunit of the prokaryotic ribosome. However, the 23S rRNA is also a ribozyme, as in it is an RNA that can catalyze reactions. The 23S rRNA can catalyze the formation of the peptide bonds between two amino acids.

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Q. Which of the following statements are correct?
(i) RNA polymerase I transcribes rRNAs.
(ii) RNA polymerase II transcribes snRNAs.
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II. RNA polymerase II transcribes snRNAs
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