Imprinted genes are chemically modified to prevent their expression .

印记基因由于被化学修饰因而其表达受到抑制

Modified scales form an irregular edge to the body that blends in nearly seamlessly with the bark .

它们改变自己的身体形状，形成不规则的边缘，近乎天衣无缝地和树皮融合在一起。

The modified virus is now ready to be tested in preclinical animal models , and possibly in phase I human clinical trials .

经过修饰的病毒现已准备好进行临床前的动物模型测试，并可能进行人类的第1期临床试验。

So researchers hypothesized that species inhabiting frigid climates have modified their potassium channels so they work better in the cold .

因此研究员假设，在严寒天气物种通过修饰它们的钾离子通道，使它们在寒冷中有更高的活性。

Dr haussler 's aim is to work out the core vertebrate genome and see how it has been modified to produce the incredible diversity of animals with backbones .

豪斯勒博士的目标是找出脊椎动物基因组的核心，了解它是怎样被修饰的能产生令人难以置信的脊椎动物的多样性。