Question

In eukaryotes, which of these rRNA is not synthesized by RNA Polymerase I?

• A. 28S rRNA
• B. 5S rRNA
• C. 5.8S rRNA
• D. 18S rRNA

Answer 1

Answer: (B)

In eukaryotes, there are 3 types of DNA dependent RNA polymerases
RNA polymerase $I:$ Transcribes rRNA (28S, 18S, 5.8S)
RNA polymerase $II:$ Transcribes hnRNA (heterogeneous nuclear RNA) a precursor of mRNA
RNA polymerase $III:$ Transcribes tRNA, 5S rRNA & snRNAs (small nuclear RNAs).