Which Characteristic Is Exhibited by Transcription-Termination Signals Found at the Ends

question 34

Multiple Choice

Which characteristic is exhibited by transcription-termination signals found at the ends of most bacterial operons,such as the trp operon?

• A) They encode a nascent RNA with the potential to form hydrogen-bonded hairpin structures.
• B) They contain the operator region to which the repressor binds to shut off transcription.
• C) They contain the site for the binding of the CAP-cAMP complex to affect catabolite repression.
• D) They contain the binding site for the repressor-corepressor complex.
• E) They begin with the sequence ATG.

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