試題詳解

44. Which of the following is NOT true of the regulation of the arabinose operon?
(A) CRP activates expression when bound to cAMP.
(B) AraC protein recruits RNA polymerase when bound to arabinose.
(C) Arabinose binds to AraC protein, decreasing its affinity for a DNA site near the promoter.
(D) Arabinose binding alters the conformation of the dimerization domain of the AraC protein.