Objective: To study the expression and localization of 14-3-3 proteins in mouse fertilized eggs and 2-cell stage embryos.

目的：研究小鼠受精卵及2 -细胞期胚胎中14-3-3蛋白的表达及亚细胞定位。

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To study the effects of UVB on development of early stage embryos of amphibian, two-cell stage embryos of Bufo bufo gargarizans Cantor were irradiated by UVB with various intensity and time.

为了研究UVB对两栖类动物早期胚胎发育的影响，以中华大蟾蜍为研究对象，用UVB分别以不同强度和不同时间照射其二细胞期胚胎，观察记录胚胎的发育过程、统计死亡率并在形态学上对UVB照射诱导的畸胚进行分析。

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In blocking federal funding for stem cell research, Bush sided with religious conservatives who argue that research on embryos destroys human life, albeit at its earliest stage of development.

尽管胚胎处于人类的早期阶段，但是布什和保守派人士仍认为胚胎的研究摧毁了生命，并阻止了联邦基金资助干细胞研究。

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They then began to divide into embryos, but none grew past the six-cell stage.

FORBES: Cloning's High Cost

The problem is that making them using somatic-cell nuclear transfer involves breaking up viable embryos, since the cells in question are found inside early-stage embryos, called blastocysts.

ECONOMIST: Human embryonic stem cells