Fig. 2. Morphology of Tax 5-6 (A), Tax 9-5 (B) and Tax 18 (C) in the absence of paclitaxel. Note that Tax 5-6 cells grow normally without drug, whereas Tax 18 cells become large and multinucleated after 2 days without paclitaxel. Tax 9-5 has an intermediate phenotype with both normal (arrowhead) and abnormal (arrow) cells following 2 days of drug deprivation. Bar, 25 µm.