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guanine

[gwah-neen]

Guanidine Hydrochloride www.fishersci.com/ strong protein-denaturing agent used in the isolation of RNA

noun Biochemistry.

a purine base, C₅H₅N₅O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine. Symbol: G

Compare guanosine.

Origin:
guan(o) + -ine²

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Guanine is always a great word to know.

So is polar covalent. Does it mean:

compound of high molecular weight derived by the addition or condensation of many smaller molecules

electrons in closer proximity to the oxygen nucleus than to the hydrogen nucleus

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Collins

World English Dictionary

guanine (ˈɡwɑːniːn, ˈɡuːəˌniːn)

—n
	a white almost insoluble compound: one of the purine bases in nucleic acids. Formula: C₅H₅N₅O

[C19: from guano + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage

Medical Dictionary

guanine gua·nine (gwä'nēn')
n.
Abbr. G
A purine base that is an essential constituent of both RNA and DNA.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage

Science Dictionary

guanine

(gwä'nēn') Pronunciation Key
A purine base that is a component of DNA and RNA, forming a base pair with cytosine. It also occurs in guano, fish scales, sugar beets, and other natural materials. Chemical formula: C₅H₅ON₅.

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complementary base cytosine nucleoside nucleotide purine

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