We have fused lac structure gene into mer of plasmid R100.1 by means of Mudl (Apr lac) phage, and got 47 strains of mer-lac gene fusion.

• 利用Mud1(Ap~rlac)噬菌体将lac结构基因融合到质粒R100.；1的汞基因(mer)中；得到了47株mer-lac基因融合菌株。