All of your cells have the same DNA, so the same genetic information, and yet cells in your brain, and cells in your heart, and cells in your kidney do very different things.

你所有的细胞都有相同的DNA,带有相同的遗传信息,尽管你大脑里的细胞,心脏上的细胞,肾里的细胞发挥着不同的功能

耶鲁公开课 - 生物医学工程探索课程节选