目的基因与运载体结合所需的条件是(    ) ①同一种限制酶  ②

目的基因与运载体结合所需的条件是(   

①同一种限制酶  ②具有标记基因的质粒  RNA聚合酶  ④目的基因 

DNA连接酶  ⑥四种脱氧核苷酸  ATP   

A.①②③④⑤⑥⑦   B.①②④⑤⑥⑦    C.①②③④⑤    D.①②④⑤⑦

答案

D

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