The genotoxicity of arsenic, which includes the modification of DNA, DNA break damages and DNA repair prevention, may be the most important mechanism of arsenic carcinogenesis.
砷的致癌症机制主要有遗传物质修饰、DNA断裂损伤及活性氧生成等。
Objective: the genotoxicity and its molecular mechanism of gasoline vehicle exhaust were studied through examining exhaust components and the oxidative DNA damage induced by them.
目的：通过研究燃汽油机动车尾气成分，及其对DNA分子的氧化损伤，在分子生物学水平上探讨燃汽油机动车尾气污染物的遗传毒性效应与机制。
Objective: to study the genotoxicity of lithium chloride and its mechanism in mice.
目的：观察氯化锂的遗传毒性特征并对其毒作用机制做一初步探讨。
应用推荐