What are pyrimidines?

Answer:
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.
First answer by ID1208641541. Last edit by DeLaughterDO. Contributor trust: 363 [recommend contributor recommended]. Question popularity: 6 [recommend question].