vectors Cloning vectors:克隆载体 to clone a gene in a vector Expression vectors:表达载体 to express a gene from a vector Integration vectors:整合载体 to integrate a gene in a genome through a vectorvectors Cloning vectors: 克隆载体 to clone a gene in a vector Expression vectors: 表达载体 to express a gene from a vector Integration vectors: 整合载体 to integrate a gene in a genome through a vector