瑞士科学家通过调整老鼠的一种基因创造出了“超强马拉松老鼠”，他们发现缺少了这种基因后啮齿类动物的肌肉会增大并且有更多的能量。
Swiss scientists created the "super strong marathon mice" by tweaking a gene and found without it the rodents' muscles bulked up and they had more energy.
这个控制从食物中吸收的热量和新陈代谢功能以达到保持体重的基因创造出了一种可以避免体重变化的生理力量。
The genes that control food intake and metabolism act to keep weight in a stable range by creating a biological force that resists weight change in either direction.
从这个角度看，动物只是人类的，只是基因创造另一种动物的方式。
From this perspective, an animal is just the person's is just the gene's way of creating another animal.
这是一个简单的基因戏法：创造出一种能感染流感的鸡，但是它又不会把流感传染给其他禽类，或者，像设想的那样不会传染给养殖它们的人类。
Here's a neat genetic trick: Make a chicken that can get the flu, but can't pass it on to other birds - or, presumably, to the humans who take care of them.
一种方法是使创造的基因在整合进入宿主基因主时失去激活局部基因的能力。
One way of doing this is to create viruses that lose their ability to activate local genes when they are integrated into their host's genome.
一种方法是使创造的基因在整合进入宿主基因主时失去激活局部基因的能力。
One way of doing this is to create viruses that lose their ability to activate local genes when they are integrated into their host's genome.
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