The secondary oocytes from Saanen dairy goats and 4-32 cell embryos from Shaanbei black goats were used as cytoplast donors and karyoplast donors respectively.

选用陕北黑山羊的4 - 32细胞胚和萨能奶山羊的次级卯母细胞分别作核供体和胞质供体。

youdao

CZB medium was used as a base medium to study the function of taurine, glucose and porcine oviductal epithelial cells system in the culture of blastomeres isolated from mouse 4? 8-cell embryos.

以CZB为基础培养液，培养小鼠4、8 -细胞胚胎单卵裂球，研究葡萄糖、牛磺酸和猪输卵管上皮细胞共培养在其体外发育中的作用。

youdao

The most successful groups of land plants are those that evolved methods of fertilized sex cell dispersal that are independent of water and structures that protest developing embryos from drying out.

最成功的陆生植物群体是那些进化出了受精性细胞散布方法的群体，这些方法不依赖于水和防止发育中的胚胎干涸的结构。

youdao

But opponents say stem cell experiments are wrong because human embryos are destroyed.

VOA: special.2009.04.07

stem cell research can go on without the ethical dilemma provided by killing embryos.

干细胞研究者可以免受由于杀死胚胎而带来的道德困境。

干细胞和伦理 - SpeakingMax英语口语达人

Palin, an evangelical Christian, opposes embryonic stem cell research because it involves the use of human embryos, but her running mate, GOP presidential nominee McCain, does support stem cell research involving embryos.

CNN: Biden's comments on special needs kids called 'new low'

Mr Bush said finance would be restricted to existing stem cell lines from embryos that had already been destroyed.

BBC: Bush backs stem cell research

But creating a stem cell requires destroying embryos when they are five-day-old balls of a hundred cells, such as fertilized eggs discarded after an in vitro fertilization.

FORBES: Magazine Article