Multiple Choice
How does tryptophan, the end product of the trp operon, function in the regulation of the operon?
A) It binds to the repressor preventing it from binding to DNA thus allowing transcription of the operon.
B) It binds to the repressor and only then can the repressor bind to DNA allowing transcription of the operon.
C) It binds directly to DNA and inhibits transcription of the operon.
D) It binds to the repressor and only then can this complex bind to DNA preventing transcription of the operon.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: As a general principle of gene regulation
Q21: Why is the analysis of transcriptomes useful
Q22: Small RNAs can regulate gene expression by<br>A)binding
Q23: Fifteen strains of bacteria that are auxotrophic
Q24: Catabolic pathways that break down complex substances
Q27: How is glucose involved in the
Q28: Alterations to DNA sites such as promoters
Q29: Transcription and translation can be coupled in
Q30: How was E.coli was used to aid
Q31: Initiation of transcription by RNA polymerase involves