Where is the trp repressor gene located?
A) Just upstream of the trp operon
B) On a region of the chromosome at some distance from the trp operon
C) Adjacent to the lac repressor gene
D) Just downstream of the trp operon
E) Directly adjacent to the promoter region of the trp operon
Correct Answer:
Verified
Q1: If the lacI repressor gene were permanently
Q3: The trp operon is _ unless tryptophan
Q4: Genes under positive control are _.
A) off
Q5: Regulatory proteins bind to the _ of
Q6: What is the relationship between operons and
Q7: The genes in an operon are _.
A)
Q8: In prokaryotes, high levels of cAMP _.
A)
Q9: In prokaryotes, the genes for metabolic pathways
Q10: The E. coli lac operon encodes three
Q11: How is lac operon transcription regulated by
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