mitochondrial rna polymerasebacteriophage rna polymeraserna polymerase in prokaryotesrna polymerase in eukaryotesrna dependent rna polymeraserna directed rna polymeraserna polymerase proofreadingrna polymerase transcriptionrifampicin rna polymerasehuman rna polymeraseviral rna polymerasedna polymerase and rna polymerase