upon treatment with low doses ( 100 % cell survival ) of the polyaromatic hydrocarbon 7-bromomethylbenz ( a ) anthracene , repair-deficient uv-5 cells had linear responses for mutation induction to thioguanine resistance or azaadenine resistance , whereas the normal repair-proficient cells showed curvilinear responses in which the slope increased with dose .
C0007620
cell survival
C0007634
normal