致突变、致癌和致畸(简称“三致”)实验是毒理学和药理学中新近崛起的领域。它的任务是:查明人类环境(包括生活环境和生产环境)中各种物理、化学和生物因子是否具有致突变性(mutagenicity)、致癌性(carcinogenicity)和致畸性(teratogenicity);探讨“三致”作用与化学结构的关系;引起“三致”作用的机理;致突变与致癌的关系;以及实验资料外推到人的理论与实践等。 Mutagenesis, carcinogenesis and teratogenicity (referred to as “Sanzhi”) experiment is toxicology and pharmacology recently emerging areas. Its mission is to: Identify whether mutagenicity, carcinogenicity and teratogenicity of various physical, chemical and biological factors in the human environment, including living and production environments; Three-induced “role and the relationship between the chemical structure; the mechanism of the” three induced "effect; mutagenicity and carcinogenesis; and experimental data extrapolation to the theory and practice.