The sensitivity to MNNG, MMS or EMS was compared between V79 6TG s (savage cells) and V79 6TG r cells (mutant cells) using SCE and micronucleus assays.

• 应用SCE和微核试验比较了V79－6TGs（野生型细胞）和V79－6TGr（突变型细胞）对MNNG，MMS和EMS的敏感性。