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A sugar of the pentose class that occurs widely in nature as a constituent of nucleosides and several vitamins and enzymes.
- ‘Sugars are vital components of life, e.g. the 5-carbon sugars ribose and deoxyribose are part of the skeletons of our information storage molecules, RNA and DNA respectively.’
- ‘The basic structure of a nucleotide contains ribose with a nitrogenous base and a phosphate group.’
- ‘In undiluted samples, ribose, fructose, rhamnose, glucose, and one unidentified sugar were detected at low concentrations (data not shown).’
- ‘A nucleotide is a combination of a ribose or deoxyribose sugar, a purine or pyrimidine base, and a phosphate group.’
- ‘Another difference between DNA and RNA is that RNA contains ribose, rather than deoxyribose.’
Late 19th century: arbitrary alteration of arabinose, a related sugar.
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