Which of the Following Correctly Describes the Function of the Repressor

question 11

Multiple Choice

Which of the following correctly describes the function of the repressor protein controlling expression of the trp operon?

• A)In the presence of tryptophan,the trp repressor tryptophan complex binds the operator inhibiting transcription.
• B)In the absence of tryptophan,the trp repressor tryptophan complex binds the operator inhibiting transcription.
• C)In the presence of tryptophan,the trp repressor tryptophan complex binds the operator enhancing transcription.
• D)In the absence of tryptophan,the trp repressor tryptophan complex binds the operator enhancing transcription.
• E)None of the above.