試卷名稱:94年 - [無官方正解]94 國立中山大學_轉學生招生考試試題﹕普通生物(上)#128895
年份:94年
科目:研究所、轉學考(插大)-普通生物學
37. In a cloning experiment you use a vector that contains a lacZ gene as a selectable marker. If the competent cells are grown on X-Gal and IPTG, which colonies would contain chromosomal DNA?
(A) the white colonies
(B) the blue colonies
(C)half the total colonies
(D) none of the colonies