oocyte

The dorsoventral polarity of Drosophila egg is established by means of signaling between the germ line-derived oocyte and the surrounding somatic follicle cells.

果蝇胚胎的发育是由四种系统，分别控制尾部、前部、后部以及背腹部的形成。

Objective To investigate the relationship between the first polar body morphology of oocyte and the zygote morphology in pronucleus stage, embryo quality in cleavage stage.

目的探讨胞第一极体形态与原核期受精形态、裂期胚胎质量的关系。

Conclusion The electrofusion efficiency may he improved by inserting more somatic cells into PVS when the somatic cells have a low electrofusion efficiency with oocytes.

结论低融合效率的体胞与胞电融合时可通PVS中体胞的数目来提高融合效率。

The secondary oocyte now divides again into two new cells of unequal size: a relatively large ootid (mature egg cell) and a minute second polar body.

此时，次级胞又分裂成两个大小不对等的新胞：一个相对很大的子（成熟胞）和一个微小的次级极体。