This is the first time scientists have successfully passed on a foreign gene to a future generation.

VOA: special.2009.06.23

So it's going to express this gene, but you've put a foreign gene in the place of the natural gene, and so the foreign gene gets expressed instead.

所以它就会表达这段基因,但是你已经用一段,异源基因替代了原有基因,因此这段外来基因就被表达了

耶鲁公开课 - 生物医学工程探索课程节选

Two of the animals later showed the foreign gene in their reproductive cells.

VOA: special.2009.06.23