The Antibiotic Rifampicin (Rifamycin B) Inhibits Transcription By

Multiple Choice

The antibiotic rifampicin (Rifamycin B) inhibits transcription by:

A) binding the promoter to block association of RNA polymerase with the template.
B) binding RNA polymerase B_subunit to block transcription initiation.
C) binding sigma factor, thereby altering promoter specificity.
D) promoting spontaneous hydrolysis of newly synthesized phosphodiester bonds.
E) inhibiting translation, which is required for coupled transcription/translation in prokaryotes.