结果成功引入点突变并构建置换型打靶载体，转染es细胞后经药物筛选得到抗性细胞克隆。
The drug resistant cell clones were picked after drug selection. Results The construction of targeting vectors was successful and several drug resistant es cell clones were gained.
结果成功引入点突变并构建置换型打靶载体，转染es细胞后经药物筛选得到抗性细胞克隆。
The drug resistant cell clones were picked after drug selection. Results The construction of targeting vectors was successful and several drug resistant es cell clones were gained.
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