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試卷名稱：109年 - 109 國立臺灣大學_碩士班招生考試試題：生物化學(一般生物化學)#125458
年份：109年
科目：研究所、轉學考(插大)◆生物化學
13. Which of the following statements regarding plasmid cloning vectors is correct?
(A)Circular plasmids do not require an origin of replication to be propagated in E. coli.
(B)Foreign DNA fragments up to 45,000 base pairs can be cloned in a typical plasmid.
(C)Plasmids do not need to contain genes that confer resistance to antibiotics.
(D)Plasmid vectors must carry promoters for inserted gene fragments.
(E)The copy number of plasmids may vary from a few to several hundred.
