Nucleotide
A nucleotide is a compound, which can form a polynucleotide chain by the union of nitrogenous bases and sugar-phosphate group. Monomers of nucleotide units are connected via a covalent phosphodiester bond. Nitrogenous bases, i.e. purines and pyrimidine, are attached via weak hydrogen bonds. The bases link with a deoxyribose pentose sugar via an N-glycosidic bond. …