[Products of laser photolysis of thymine and their transformation in chemical hydrolysis of polynucleotides to the bases].

Some main products of laser photolysis and gamma-radiolysis of thymine were shown to undergo subsequent transformations during DNA hydrolysis by formic acid to the bases. The method has been developed for the quantitative determination of the character and the degree of thymine transformations under the effect of laser- and gamma-radiations with a reference to the end-products of the irradiated thymine hydrolysis.