Imagine two genes, two sorts of animals each containing their own gene.

想象两个基因，两种动物各自含有自己的基因。

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Hopefully each one of those cells is containing one or more of the plasmids that you're interested in and those are being copied as well.

如果顺利的话每个细菌里都含有,一个或更多我们所感兴趣的质粒,而它们也正在被复制

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