How Does the Antibiotic Rifampicin Prevent Transcription of RNA

question 29

Multiple Choice

How does the antibiotic rifampicin prevent transcription of RNA?

• A)Rifampicin blocks binding of RNA polymerase to the promoter.
• B)Rifampicin prevents chain elongation by preventing formation of the phosphodiester bond.
• C)Rifampicin prevents the chain termination,so transcripts are too long and rendered nonfunctional.
• D)Rifampicin blocks ribosomal RNAs from forming functional ribosomes.
• E)Rifampicin blocks translation by preventing the mRNA from being processed.

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Definitions:

Anterograde Amnesia

The loss of the ability to create new memories after the event that caused the amnesia, leaving the person unable to recall the recent past.

Working Memory

A cognitive system responsible for temporarily holding information available for processing and decision making.

Short-Term Storage

A memory storage system that briefly holds a limited amount of information in awareness.

Recency Effects

A cognitive phenomenon wherein the most recently presented items or experiences are more likely to be remembered than those presented earlier.