During development of the embryo it goes from being a single cell, the fertilized egg, to being a multi-cellular organism with billions of cells in it.

胚胎的发育,始于一个单一细胞,即受精卵,直到形成一个以十亿计数量的细胞构成的,多细胞有机体

耶鲁公开课 - 生物医学工程探索课程节选

The zygote or this fertilized egg is a completely undifferentiated cell.

受精卵,或者说已受精的卵子,是一个完全未分化的细胞

耶鲁公开课 - 生物医学工程探索课程节选

The cell is a fertilized egg, so you take a fertilized egg and you directly inject plasma DNA into the pronucleus, into one of the pronucleus--pronuclei.

供试细胞是受精卵,当你获得一枚受精卵,可以直接将胞质DNA注射到,它的一个原核中

耶鲁公开课 - 生物医学工程探索课程节选

The cell is then given a jolt of electricity to activate cell division, basically tricking the cell into doing what a fertilized egg would normally do.

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