题目

下列叙述正确的是 A.限制酶只在获取目的基因时才用B.重组质粒的形成是在细胞内完成的 C.质粒都可以作为运载体 D.蛋白质的氨基酸排列顺序可能为合成目的基因提供线索 答案：DMrs. Jones does not like shopping, ________ [　　] A．and she does like gardening B．nor she does like gardening C．or does she like gardening D．nor does she like gardening