A.Ⅰ型限制酶B.Ⅱ型限制酶C.Ⅲ型限制酶D.Ⅰ型和Ⅲ型限制醉
A.瓊脂糖凝膠電泳B.聚丙烯酰胺凝膠電泳C.瓊脂粉電泳D.圓盤(pán)電泳
A.Northern blotB.Western blotC.dot blotD.Southern blot