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DNA 是生命活动最重要的遗传物质,也是环境中物理、化学因素攻击的主要靶分子。DNA 的主要损伤可归纳为两种形式:碱基损伤1.嘧啶二聚体,250～310nm 紫外线照射所致;
DNA is the most important genetic material of life activity and the main target of physical and chemical attacks in the environment. The main damage of DNA can be summarized into two forms: base damage 1 pyrimidine dimer, 250 ~ 310nm UV radiation caused;