any agent (physical or environmental) that can induce a genetic mutation or can increase the rate of mutation
双语例句
However, extent of reduction in antimutagenicity varied with the test strains of S. typhimurium and the kind of mutagens examined. 萃取物抗致突变活性降低之程度因所测试菌株及致突变剂之不同而有所差异。
These flat-ringed planar compounds intercalate with the cells' nucleic acids .and act as frameshift mutagens and carcinogens. 这些平面扁平环形化合物能插入细胞的核酸中并且充当移码突变剂和致癌剂。
