(单选题)91: 关于大肠杆菌DNA聚合酶Ⅰ、Ⅱ、Ⅲ??( )
A: DNA聚合酶Ⅰ含7种亚基
B: DNA聚合酶Ⅰ含量最多,活性最高
C: DNA聚合酶Ⅱ对复制中的错误进行校对
D: DNA聚合酶Ⅲ是在复制延长阶段起主要作用的酶
E: DNA聚合酶Ⅲ有5'→3'外切酶活性,因而能进行切口平移
1.(text)I.VocabularySkills(2points) Completethefollowingstatementsbychoosingth...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisT(true)orF...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisT(true)orF...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...