guanine
noun
gua·nine ˈgwä-ˌnēn 
: a purine base C5H5N5O that codes genetic information in the polynucleotide chain of DNA or RNA compare adenine, cytosine, thymine, uracil
Example Sentences
Recent Examples on the Web Trading down is as much a part of GM John Schneider’s DNA as adenine, guanine, cytosine and thymine. 
Eddie Brown, San Diego Union-Tribune, 28 Apr. 2022 All genes consists of base pairs made of adenine (A), thymine (T), guanine (G), and cytosine (C). Manasee Wagh, Popular Mechanics, 1 Apr. 2022 The low prevalence of uracil sequences is connotated by an enrichment for guanine and cytosine sequences. William A. Haseltine, Forbes, 28 Oct. 2021 Researchers have long been intrigued by the possibility that evolution could have gone in a different direction with DNA’s four bases: adenine (A), thymine (T), cytosine (C) and guanine (G). Quanta Magazine, 12 July 2021 Each gene consists of some number of base pairs made of adenine (A), thymine (T), guanine (G), and cytosine (C). Caroline Delbert, Popular Mechanics, 3 June 2021 One by one each of the four bases - adenine, thymine, guanine, cytosine, or A, T, G, C - washes over the plate containing Nicholas' exons. Mark Johnson And Kathleen Gallagher, Milwaukee Journal Sentinel, 21 Dec. 2010 In the case of SARS-CoV-2, which has an RNA genome based on adenine, cytosine, guanine and uracil, sometimes mistakes happen. Quanta Magazine, 25 Feb. 2021 To do so, researchers typically convert a data file’s string of digital 1s and 0s into combinations of the molecule’s four bases: adenine, guanine, cytosine, and thymine. Robert F. Service, Science | AAAS, 11 Jan. 2021 See More
Eddie Brown, San Diego Union-Tribune, 28 Apr. 2022 All genes consists of base pairs made of adenine (A), thymine (T), guanine (G), and cytosine (C). Manasee Wagh, Popular Mechanics, 1 Apr. 2022 The low prevalence of uracil sequences is connotated by an enrichment for guanine and cytosine sequences. William A. Haseltine, Forbes, 28 Oct. 2021 Researchers have long been intrigued by the possibility that evolution could have gone in a different direction with DNA’s four bases: adenine (A), thymine (T), cytosine (C) and guanine (G). Quanta Magazine, 12 July 2021 Each gene consists of some number of base pairs made of adenine (A), thymine (T), guanine (G), and cytosine (C). Caroline Delbert, Popular Mechanics, 3 June 2021 One by one each of the four bases - adenine, thymine, guanine, cytosine, or A, T, G, C - washes over the plate containing Nicholas' exons. Mark Johnson And Kathleen Gallagher, Milwaukee Journal Sentinel, 21 Dec. 2010 In the case of SARS-CoV-2, which has an RNA genome based on adenine, cytosine, guanine and uracil, sometimes mistakes happen. Quanta Magazine, 25 Feb. 2021 To do so, researchers typically convert a data file’s string of digital 1s and 0s into combinations of the molecule’s four bases: adenine, guanine, cytosine, and thymine. Robert F. Service, Science | AAAS, 11 Jan. 2021 See More Word History
Etymology
guano + -ine; from its being found especially in guano
First Known Use
1850, in the meaning defined above
Medical Definition
guanine
noun
gua·nine ˈgwän-ˌēn
: a purine base C5H5N5O that codes genetic information in the polynucleotide chain of DNA or RNA compare adenine, cytosine, thymine, uracil