[1] Nitrogenous base carbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen; includes adenine, guanine, cytosine, thymine, and uracil. or nitrogenous base n. A basic compound that contains nitrogen, such as a purine or pyrimidine. Medical definition of nitrogen base: a nitrogen-containing molecule with basic properties; especially : one that is a purine or pyrimidine. In DNA nitrogenous bases are either pyrimidines or purines. A nitrogenous (nitrogen-containing) base is a nitrogen-containing molecule having the chemical properties of a base. Definition of NITROGENOUS BASE in the Definitions.net dictionary. Nitrogenous bases.Nucleotide hydrolysis produces two types of substances derived from the heterocyclic rings purine and pyrimidine known as the purine and pyrimidine bases. Let’s break it down a bit to understand what the definition really means. Nitrogenous bases fall into the class of chemical compounds known as organic compounds or those which contain carbon. What does NITROGENOUS BASE mean? Define nitrogen base. 6.1 shows their chemical structure and the numbering of the elements in the molecule. The nitrogenous bases that form DNA and RNA are classified as pyrimidine and purine bases. The SOP model of change as a new way of looking at causality Extending from each sugar molecule toward the center of the ladder is a nitrogenous base that is weakly bonded to a nitrogenous base extending from the opposing strand. double helix Fig. The term is used especially of organic ring compounds, such as adenine, guanine, cytosine, and thymine, which are constituents of nucleic acids. It is an organic compound that owes its property as a base to the lone pair of electrons of a nitrogen atom.In biological sciences, nitrogenous bases are typically classified as the derivatives of two parent compounds, pyrimidine and purine. Source for information on nitrogenous base: A Dictionary of Biology dictionary. nitrogenous: ( nī-troj'ĕ-nŭs ), Relating to or containing nitrogen. The nitrogenous bases are paired in specific combinations: adenine with thymine and guanine with cytosine. Critically, these bases are linked to each other with hydrogen bonds, forming the "rungs" of a structure that, if not wound into a helix, would resemble a ladder; in this model, the sugars and phosphates form the sides. Purines are derived from pyrimidines by addition of an imidazole group. nitrogen base synonyms, nitrogen base pronunciation, nitrogen base translation, English dictionary definition of nitrogen base. The nitrogenous bases, meanwhile, occupy the interior portion of the molecule. Information and translations of NITROGENOUS BASE in the most comprehensive dictionary definitions resource on the web. nitrogenous base A basic compound containing nitrogen. 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