Which of the following acts as a corepressor to block transcription of the trp operon?
A) cAMP
B) Lactose
C) Methionine
D) Tryptophan
E) CRP
Correct Answer:
Verified
Q25: Suppose that there is a mutation in
Q26: The prokaryotic gene zest5 produces a hypothetical
Q27: Viruses
A) arise from preexisting viruses.
B) replicate their
Q28: In eukaryotic cells,promoters are
A) transcribed.
B) transcribed and
Q29: Which statement about operons is false?
A) The
Q31: In the absence of substance M,a hypothetical
Q32: What is a likely advantage of transcriptional
Q33: In eukaryotes,a promoter is the region of
A)
Q34: Which statement about the early genes in
Q35: In a repressible operon,the repressor molecule
A) can
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