Pronunciation: ri'bo-nu-kle'ik as'id
Definition: A macromolecule consisting of ribonucleoside residues connected by phosphate from the 3'-hydroxyl of one to the 5'-hydroxyl of the next nucleoside. RNA is found in all cells, in both nuclei and cytoplasm and in particulate and nonparticulate form, and also in many viruses; polynucleotides made in vitro are generally called such. Various RNA fractions are identified by location, form, or function.
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Examples: glitazone, GI cocktail, etc.