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試卷名稱：101年 - 101 國立清華大學_碩士班入學考試試題_生命科學院甲組、醫學生物科技學程：分子生物學#127971
年份：101年
科目：研究所、轉學考(插大)◆分子生物學
19. Which of the following descriptions is not correct ?
(A) Attenuation causes the length of the RNA molecules to be significantly shortened.
(B) Arabinose can derepress the ara operon by causing AraC to loosen its attachment to araO2 and to bind to araI2 instead.
(C) Recent experimental evidence has shown that three lac operator sequences are needed for maximal expression.
(D) A riboswitch is usually a region in DNA that contains an aptamer and an expression platform.
(E) The two dimmers in a lac repressor tetramer interact with the major groove of the DNA.
