Multiple Choice
Repressible genes are usually actively transcribed when:
A) repressor molecules bind to the promoter.
B) the supply of the end product formed by the enzymes encoded by these genes is low.
C) tryptophan accumulates in the cell.
D) quantities of precursor materials are high.
E) there is no other substrate that can be used by the cell.
Correct Answer:
Verified
Correct Answer:
Verified
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