RNA polymerases in eukaryotic cells
A) are localized in the post-mitochondrial cytoplasmic fraction.
B) require DNA replication to function.
C) exist in multiple molecular forms which have different specificities.
D) require a primer for chain elongation.
E) polymerize RNA chains in the to 5' direction.

Question

Quizplus · Accepted Answer

RNA polymerases in eukaryotic cells exist in multiple molecular forms, referred to as RNA polymerase I, II, and III. These different polymerases have different specificities for different types of RNA molecules. For example, RNA polymerase II is responsible for transcribing protein-coding genes, while RNA polymerase III transcribes genes for tRNAs, 5S rRNA, and some other small RNA molecules.

RNA Polymerases in Eukaryotic Cells