Respuesta :
Thymine is a base that you find in DNA but not in rna, because it is exchanged by uracil in RNA.
Thymine
It’s a nitrogenous base that is found in DNA but not in RNA. In RNA thymine is replaced by Uracil and it acts as a base complementary to adenine. Uracil is also a pyrimidine just like the thymine. Uracil can be produced easily at less cost as compared to thymine by degradation of cytosine
