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 .