Retroviruses, for example, can only insert - can only transduce and express their DNA in cells that are dividing.

就以逆转录病毒为例,它们只能在分裂阶段的细胞里,转导并表达自己的基因

生物医学工程探索课程节选 : 耶鲁公开课

They, in some cases, they integrate their DNA into the host chromosome, that's what retroviruses do and they make viral proteins.

有些情况下,病毒DNA会整合进宿主的染色体中,逆转录病毒就是这样做的,它们还制造病毒蛋白

生物医学工程探索课程节选 : 耶鲁公开课

I talked about just not using viruses but using plasmid DNA together with lipids and that's another strategy for gene therapy.

这一部分我们不仅讲了病毒的应用,也讲了利用脂质体包裹的质粒DNA,基因治疗还有其它的策略

生物医学工程探索课程节选 : 耶鲁公开课