In eukaryotic cells, RNA polymerase ____ transcribes most of the ribosomal RNA, RNA polymerase ____ transcribes the major structural genes and RNA polymerase ____ transcribes tRNAs.
A)I; II; III
B)I; III; II
C)II; I; III
D)II; III; I
E)III; II; I

Question

Quizplus · Accepted Answer

RNA polymerase I transcribes most of the ribosomal RNA (rRNA) including 18S, 5.8S, and 28S rRNA. 
RNA polymerase II transcribes the major structural genes including protein-coding genes, as well as miRNA genes and some non-coding RNA genes.
RNA polymerase III transcribes tRNA genes, 5S rRNA genes, and some small non-coding RNA genes.

In Eukaryotic Cells, RNA Polymerase ____ Transcribes Most of the Ribosomal