Nitrogenous base Nucleoside Deoxynucleoside Adenine AdenosineA DeoxyadenosinedA Guanine GuanosineG DeoxyguanosinedG Thymine 5'-Methyluridinem5U ThymidinedT Uracil UridineU DeoxyuridinedU Cytosine CytidineC DeoxycytidinedC Nucleosides are glycosylamines consisting of a nucleobase (often referred to simply base) bound to a ribose or deoxyribose sugar. Examples of these include cytidine, uridine, adenosine, guanosine, thymidine and inosine. Nucleosides can be phosp… (More on Nucleoside)