Table 1.
Mean lethal dose of arsenite and mutant yield
| Treatment | Do, μg/ml | MY* | MY/Do |
|---|---|---|---|
| Arsenite | 1.7 | 90 | 150 |
| Arsenite + BSO (10 μM) | 0.3 | 500 | 150 |
| Arsenite + BSO (25 μM) | 0.1 | 1,500 | 150 |
MY, mutant yield, the slope of the mutant dose response curve, expressed as mutants per 105 clonogenic survivors per microgram per milliliter.