In a eukaryotic cell during transcription, enzymes RNA Polymerase I, II and III are used respectively for the formation of:

Question

In a eukaryotic cell during transcription, enzymes RNA Polymerase I, II and III are used respectively for the formation of: (A) m-RNA, t-RNA and 5S r-RNA (B) t-RNA, 28S r-RNA and m-RNA (C) 5.8S r-RNA, hn-RNA and t-RNA (D) 18S r-RNA, t-RNA and m-RNA

Tardigrade Admin · Accepted Answer

There are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organelles). There is a clear cut division of labour. The RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S), whereas the RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs). The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).

Q. In a eukaryotic cell during transcription, enzymes RNA Polymerase I, II and III are used respectively for the formation of:

m-RNA, t-RNA and 5S r-RNA

t-RNA, 28S r-RNA and m-RNA

5.8S r-RNA, hn-RNA and t-RNA

18S r-RNA, t-RNA and m-RNA