in this study , the ratio of the de novo synthesis of dtmp to hmdcmp derivatives was measured by determining the total thymine and 5-hydroxylxytosine ( hmcyt ) deoxyribonucleotides synthesized by the reductive pathways from [ 6-3h ] uracil including those in dna and any degradation products excreted into the medium .
C0040087
thymine
C0041917
uracil