This one cell, this one fertilized cell which is unique because it's the - its chromosome contains the combination of the sperm and the egg, develops into an embryo and then on birth develops into a human.

这个受精卵,是独一无二的,因为它的染色体,包含了精子和卵子的组合,并由此发育成为一个胚胎,之后形成一个人类个体

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 sperm - say this is the one sperm cell that's able to inject its DNA into the egg, well then this cell has a polarity.

假设某个精子细胞,成功向卵子注入了自己的DNA,那这个细胞就有了极性

耶鲁公开课 - 生物医学工程探索课程节选