unidirectional deletion造句

例句与造句

1. The 2 . 3kb fragment was then cloned to pbluescript ii sk ( + ) . the resulting plasmid , phz1754 , was subjected to progressive unidirectional deletions using exonucleaseiii provided in the erase - a - base system for dna sequencing
   其后的亚克隆和功能试验将胆固醇氧化酶基因定位在phz1148的2 . 3kbecori - sal片段上，将该片段克隆到大肠杆菌载体pbluescript sk ( + )上，形成质粒phz1754 。
2. It's difficult to find unidirectional deletion in a sentence. 用unidirectional deletion造句挺难的