Some people like products made from sheep's milk.

VOA: special.2009.07.21

So this gene is going to be turned on in the sheep when it makes milk, under conditions where it makes milk.

这段基因会被激活,这段基因会在羊制造乳汁时被激活

耶鲁公开课 - 生物医学工程探索课程节选

If the sheep grows up in the right way, and people have shown that this will work, you can milk the sheep, the sheep has milk, the milk has insulin in it.

如果绵羊正常生长,人们已经证明这的确可行,你可以为绵羊挤奶,绵羊会产奶,而羊奶中有胰岛素

耶鲁公开课 - 生物医学工程探索课程节选