胚胎干细胞在叫做胚泡、满流体的球中凝结成一团小而明显的斑点。
Embryonic stem cells clump together as a tiny and distinct blob inside fluid-filled balls called blastocysts.
目的：研究体外培养发育的人胚卵裂球18、X及Y染色体数目变异和培养方式对颗粒细胞分泌功能的影响。
Objective:To study the numerical deviation of chromosome of 18, X and Y in blastomeres developed in vitro and effects of culture system on granulosa cells secretory function.
结果胚鼠室管膜源性神经干细胞在相应培养条件下呈现出神经干细胞快速增殖，形成由多细胞组成的细胞球（神经球）；
Results The NSCs derived from the fetal rat ependyma were observed to rapidly proliferate to form some cellular spheres or neural spheres consisting of NSCs.
畸形苗发生过程中的内源激素含量在球型胚之后比正常苗高；
The contents of Endo-hormones in abnormal induction plants were higher than that in the normal induction plants after the stage of global-embryoid;
畸形苗发生过程中的内源激素含量在球型胚之后比正常苗高；
The contents of Endo-hormones in abnormal induction plants were higher than that in the normal induction plants after the stage of global-embryoid;
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