Mononucleotides

complex organic compounds consisting of a purine or pyrimidine base, a sugar radical (ribose or deoxyribose), and a phosphoric acid radical. Mononucleotides are monomers that form nucleic acids (polynucleotides). They are identified by the type of nitrogen base, which is a specific component. The ribose or deoxyribose phosphate unit is identical in different mononucleotides.