A http://www.answers.com/topic/heterocyclic organic compound (1) containing nitrogen atoms at positions 1 and 3. Naturally occurring derivatives of the parent compound are of considerable biological...
ACGTUAdenine - represented by an ACytosine - represented by a CGuanine - represented by a GThymine (DNA only) - represented by a TUracil (RNA only) - represented by a UA pyrimidine is a single...
Pyrimidines are single ringed aromatic structures that make up 3 of the basic building blocks of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). Exampes include cytosine, thymine and uracil.