一、细胞分化 A Single cell, the fertilizedegg, Gives Rise to Hundreds of Diferent Cell Types This generation of cellular Diversity ls Called differentiation 受着卵 着子 N分化 育 新个体一、细胞分化 精子 卵 受精卵 分化 新个体 发 育 A Single Cell, the Fertilized Egg, Gives Rise to Hundreds of Different Cell Types. This Generation of Cellular Diversity Is Called Differentiation