| 释义 |
〔cleavage〕The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms. Also called segmentation 卵裂，卵割：由一组有丝分裂细胞从受精卵中生成的囊胚，是复杂有机体中多细胞的主要成分 也作 segmentation〔embryo〕The fertilized egg of a vertebrate animal following cleavage.胚胎：卵裂后的脊椎动物的受精卵 |