There were detestably close synapses between homologous chromosomes during thellateprophase and early metaphase in mitosis of somatic cells.

发现其有丝分裂的晚前期、中期阶段，咯对同源染色行联会。

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，分别控制头尾部、前部、后部以及背部的形成。

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.

结论低融合效率的与卵母电融合时可通过增加PVS中的数目来提高融合效率。

The present study is the first to report on the usefulness of puromycin for production of enhanced green fluorescent protein (EGFP) transgenic piglets after somatic cell cloning and embryo transfer.

本研究是第一次报道克隆和胚胎移植后成功应用嘌呤霉素标记获得了转强化型绿色荧光蛋白（EGFP）基因的小猪。