Positive Control: HCT116, HCT116 (30 μM cisplatin treatment for 24 hr), HCT116 (UVB treatment 50mJ for 2hr), HCT116 (UVB treatment 50mJ for 6hr), NIH-3T3 (30μM cisplatin treatment for 24hr), PC-12 (30uM cisplatin treatment for 24hr) Predicted Reactivity: