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。
2
Feschotte suggests that it is likely having a bit of the virus's code integrated in a bird's genome might have conferred immune protection against similar viruses.
Feschotte提议将少量病毒代码注入禽类的基因里，可能产生对同类病毒的抗体。
3
Dot blot indicates that the fibroin gene has integrated into the genome of B. mori.