AfterGerman Cytosin Ancient Greek κύτος ( kútos ) +-ine Albrecht Kossel andAlbert Neumann in 1894 when it was hydrolyzed from calf thymus tissues.
cytosine (plural cytosines
( biochemistry ) heterocyclic base ,4-amino pyrimidin -2(1H )-one , which pairs withguanine inDNA andRNA (by means of threehydrogen bonds ).Hypernyms: nucleobase pyrimidine Coordinate terms: adenine guanine thymine uracil 1997 Ian McEwan ,Enduring Love 164 :Then he found them, the substances that made up the four-letter alphabet in whose language all life is written — adenine andcytosine , guanine and thymine.
heterocyclic base, 4-aminopyrimidin-2(1H)-one, which pairs with guanine in DNA and RNA
