So having a place that the cell knows - where the cell knows how to replicate is important and so plasmids have an origin of replication.
所以得有一个细胞能识别的区域,能使细胞知道,怎样来复制 这很重要,因此质粒上带有一个复制起点
So I can use the presence of those to identify cell populations.
因此我可以利用这些蛋白的存在与否,来识别细胞群
We've learned how to identify and catalog cells according to the composition of proteins on the surface and those proteins that distinguish a cell are often called marker proteins.
我们学会了如何按照表面的蛋白成分,来识别并分类细胞,而这些用来区别细胞的蛋白,通常称为标记蛋白
It takes advantage of the specificity of the restriction enzymes, the fact that we know what the gene sequence that we're looking for, and using this technological process of electrophoresis to identify changes that we predict.
这个方法利用了限制酶特有的性质,我们知道我们在找什么样的基因序列,从而才能利用电泳这个技术流程,来识别出我们预计的情况
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