The Antibiotic Rifampicin (Rifamycin B) Inhibits Transcription By

question 32

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.

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Definitions:

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