Source:http://linkedlifedata.com/resource/umls/id/C1157592
GO: The chemical reactions and pathways resulting in the formation of nucleotides, any nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic-nucleotides (nucleoside cyclic phosphates). [GOC:go_curators],NCI: Nucleotide Biosynthesis consists of activities of biologic molecules or complexes involved in the enzymatic formation of nucleoside phosphates, the monomeric building blocks from which DNA or RNA polymers are constructed.