when the chinese hamster cell line v79 and the tester strain of salmonella typhimurium ta100 were treated with the precarcinogens dimethylnitrosamine ( dmn ) or diethylnitrosamine ( den ) in the presence of s9 mix , a dose-dependent increase of sister-chromatid exchanges ( sce ) in v79 cells and his+ revertants in ta100 resulted .
C0037211
sister-chromatid exchanges
C0007634
cells