Then press it in your hand until it is about the size of an egg.
VOA: special.2009.09.14
So if you think of a shell, you can actually just think of an egg shell, that's probably the easiest way to think of it, where the yolk, if you really maybe make it a lot smaller might be the nucleus.
可以把它想成,个蛋壳,这也许是,最简单的思考办法,蛋黄如果,缩小非常多倍的话,就可以想象成核子。
Now, you all know that we can make irreversible changes in proteins, you can denature them completely, that's what happens when you cook an egg for example.
现在你们都懂蛋白能够发生不可逆的改变,能够完全变性,比如在你煮鸡蛋的时候就是这样
On Saturday,the Brooklyn Bridge Park will welcome children and their families for an egg hunt.
VOA: special.2011.04.22
An egg is an example of a germ cell.
而卵子是一种生殖细胞
Newton immediately gave Halley the answer: an egg-shaped path called an ellipse.
VOA: special.2011.06.01
You know that the ovary produces an egg.
你们知道,卵巢产生卵子
This one cell, this one fertilized cell which is unique because it's the - its chromosome contains the combination of the sperm and the egg, develops into an embryo and then on birth develops into a human.
这个受精卵,是独一无二的,因为它的染色体,包含了精子和卵子的组合,并由此发育成为一个胚胎,之后形成一个人类个体
One of the ways that it's used is to take the fertilized egg from an animal, a mouse, usually it's a mouse and inject in a vector that contains a gene that is involved in human disease of some sort.
其中一种应用就是,从动物,一般是老鼠体内取出受精卵,注入某种质粒,这种质粒带有与某些人类疾病相关的基因
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