the results of these studies indicated that the sces observed were proportional to the level of brura substituted for thymine in the cellular dna , were induced by increasing concentrations of thymidine in the culture medium during replication of the brura-containing dna , correlated well with the induction of mutations to thioguanine resistance and to ouabain resistance , correlated with increases in the intracellular levels of dttp and dgtp generated by the high concentrations of thymidine .
C0012854
dna
C0598312
replication