There were a few things I didn't get to finish last time in talking about particularly gene transfer in mammals.
我们还有一些上次未完成的内容要讲,尤其是哺乳动物的基因导入
Particularly if you compare them with hair cells that are present in the mammalian and the human and mouse cochlea.
尤其是与哺乳动物如人和老鼠的,耳蜗中的毛细胞相比。
From a psychological point then, animals have evolved to be nice to their kin, particularly their children, and particularly in birds and mammals.
从心理学角度看,动物进化趋向于对自己的亲人有益,特别是自己的孩子,以鸟类和哺乳类为代表。
One way that that's done is by introducing genes into cancer cells, genes that aren't normally expressed in any mammalian cell, but that will cause the cancer cell to die.
已经成功应用的一种方法是,将基因导入癌细胞,而这种基因通常不在哺乳动物细胞中表达,但是可以导致癌细胞的死亡
For birds and mammals, we don't have many kids but so we devote a huge amount of psychological energy to protecting the ones that we have.
鸟类和哺乳类,没有很多孩子,所以我们用大量的心力,去保护我们有的孩子。
You could do the same thing in mammals and here's one quick example of that, using a different kind of a vector, but inserting a gene into the fertilized egg of a mammal, in this case, a sheep.
你也能在哺乳动物上做到同样的效果,这里有另一个简短的例子,用了另一种载体,把一段基因注入哺乳动物的受精卵中,在这里我们用了绵羊
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