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颜大大平

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[交流] 如何做阳性对照?

合成了一些耐药基因引物,想做pcr扩增本批细菌是否含有此耐药基因。

问题:1.此耐药基因阳性率很低,没有阳性菌的情况下要如何做对照?

2.如果无对照,要如何排除是引物的问题还是本批菌无此耐药基因?

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