下列三种方法中,能有效区分重组子与非重组子的是: I 限制性酶切;II PCR扩增;III 抗药性筛选
A.
I + II
B.
I + III
C.
II + III
D.
I + II + III
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【简答题】Part A Directions: Read the following four texts. Answer the questions below each text by choosing [A], [B], [C], or [D]. Mark your answers on ANSWER SHEET 1. (40 points) Text 1 In spite of “endless t...