試卷名稱:109年 - 109 國立中山大學_碩士暨碩士專班招生考試試題_生科系碩士班乙組:分子生物學#125365
年份:109年
科目:研究所、轉學考(插大)◆分子生物學
35. Which statements are correct regarding the expression of the lac operon?
(A) Genes in the lac operon are expressed at high levels when both lactose and glucose are present at high levels.
(B) The site bound by the lac repressor is called the lac operator.
(C) The lac repressor is expressed regardless of whether or not lactose is present.
(D) The lac operon is not transcribed when neither the activator nor the suppressor binds its site on DNA.
(E) Catabolite activator protein (CAP) binds to the CAP site when glucose is absent.