Embryonic stem cells are the body's master cells. They can give rise to every other cell type and are found in the earliest-stage embryos.

胚胎干细胞是人体的主细胞，可分化为所有其他类型的细胞，存在于胚胎的初期阶段。

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They are investigating whether genetically modified stem cells - the body's master cells that can grow into any kind of cell - can be used to treat AIDS patients.

他们正在研究转基因干细胞是否可以用于治疗艾滋病患者。干细胞是人体的主干细胞，可以分化生长成任何类型的细胞。

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So how can cells, which have the same sort of master information DNA, in your brain, and your heart, and your kidney be so different?

那么为什么这些有同种DNA信息的细胞,在你的大脑里,你的心脏里,在你的肾里,表现的如此不同呢

耶鲁公开课 - 生物医学工程探索课程节选

Stem cells are the primitive master cells found in most tissues that help generate more-specialized cells that perform most functions inside the body.

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Embryonic stem cells are the master cells of the human body.

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