the effects of a tumor promoter 12-o-tetradecanoylphorbol-13-acetate ( tpa ) and/or an anti-promoter antipain ( protease inhibitor ) on spontaneous and ultraviolet-induced sister-chromatid exchanges ( sces ) and 6-thioguanine-resistant ( 6tgr ) recessive mutations were examined in v79 chinese hamster cells in culture .
C0037211
sister-chromatid exchanges
C0007634
cells