It's a mechanism that they have evolved in order to prevent foreign genes from entering a cell and being expressed.

它们进化出这种机制来,防止异源基因进入细胞并表达

耶鲁公开课 - 生物医学工程探索课程节选

Some studies have, motivated by Chomsky's work in expressed sorry, motivated by Chomsky's critique of Skinner's Verbal Behavior, have asked even in -- "What if we just looked at children within the United States?

受到乔姆斯基,《斯金纳述评》的启发,一些研究甚至询问道,"要是我们只研究美国儿童又会怎样呢"

耶鲁公开课 - 心理学导论课程节选

We're going to have DNA that we would like to make lots of copies of, or we're going to have DNA that we would like to get expressed in a cell, and we're going to put it in this region that's called the polylinker.

我们将那些需要得到很多拷贝数的DNA,或者需要在细胞中表达的DNA,整合到这个叫做多克隆位点的区域中

耶鲁公开课 - 生物医学工程探索课程节选