The scientists started by genetically engineering mice to have a specific molecule in their senescent cells.
科学家们开始让基因工程小鼠的衰老细胞中有一个特定的分子。
LS9 has been genetically engineering E. coli to optimize the process by which the bacteria converts sugar into fuel.
LS 9已经对大肠杆菌进行基因工程改造，以优化其将糖类转化成燃料的过程。
Entomologists say genetically engineering desirable traits into plants beats traditional methods and will soon be widely accepted and used.
昆虫学者说应用到植物的基因工程的优良品性打败了传统的方法，并且会很快地被接受和应用。
Here we were able to purify one specific cell type without resorting to genetically engineering the stem cells themselves, a process that can introduce unwanted traits into the cells.
这我们有能力去纯化一种特定细胞类型不需要求助于基因工程，这一方法不需要在细胞内加入标记。
Success isn't assured, of course. The technologies present difficult engineering challenges, and some require big scientific leaps in lab-created materials or genetically modified plants.
当然，这些技术并不一定能取得成功，它们目前都面临着不少难题，一些技术需要在实验室创造的材料和或转基因植物方面实现一些重大突破。
Critics and advocates of genetic engineering say that the apple could be a turning point in the nation's highly polarizing debate over genetically modified organisms (GMOs).
基因工程的批评家们与支持者们均表示，美国国内在转基因生物的争论上，观点已呈两极化，“北极苹果”的试售可能会是这一局面的转折点。
Critics and advocates of genetic 2 engineering say that the apple could be a turning point in the nation's highly polarizing debate over genetically modified organisms (GMOs).
基因工程的批评家们与支持者们均表示，美国国内在转基因生物的争论上，观点已呈两极化，“北极苹果”的试售可能会是这一局面的转折点。
Success isn "t assured, of course. The technologies present difficult engineering challenges, and some require big scientific leaps in lab-created materials or genetically modified plants."
当然，这些技术并不一定能取得成功，它们目前都面临着不少难题，一些技术需要在实验室创造的材料和或转基因植物方面实现一些重大突破。
Success isn "t assured, of course. The technologies present difficult engineering challenges, and some require big scientific leaps in lab-created materials or genetically modified plants."
当然，这些技术并不一定能取得成功，它们目前都面临着不少难题，一些技术需要在实验室创造的材料和或转基因植物方面实现一些重大突破。
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