目前基因工程所用的质粒载体主要是以天然细菌质粒的各种元件为基础重新组建的人工质粒pbr322质粒是较早构建的质粒载体其主要结构如图一所示 Template




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tomski目前基因工程所用的质粒载体主要是以天然细菌质粒的各种元件为基础重新组建的人工质粒pbr322质粒是较早构建的质粒载体其主要结构如图一所示 coloring