One of the types of chemicals that make up the nucleotides that form DNA and RNA. They include adenine and guanine
a type of nitrogenous base present in DNA molecules containing two fused rings of carbon and nitrogen atoms; two examples in DNA are adenine (A) and guanine (G).
(pure´ een) • A type of nitrogenous base. The purines adenine and guanine are found in nucleic acids.
A nitrogencontaining, singlering, basic compound that occurs in nucleic acids. The purines in DNA and RNA are adenine and guanine.
A nitrogenous base with fused five- and six-member carbon rings. Examples: adenine and guanine are purines.
a colorless crystalline nitrogen-containing organic base; the parent compound of various biologically important substances
a bicyclic organic compound , consisting of a fused pyrimidine /imidazole ring
PURE-een A type of organic molecule with a double ring structure, including the nitrogenous bases adenine and guanine. 313
A nitrogen-containing, double-ring, basic compound that occurs in nucleic acids. The purines in DNA and RNA are adenine and guanine.
A nitrogen-containing compound with a double-ring structure. The parent compound of Adenine and Guanine.
One of the groups of nitrogenous bases that are part of a nucleotide. Purines are adenine and guanine, and are double-ring structures. PICTURE
A nitrogen- containing, double ring compound that occurs in nucleic acids. In DNA molecules, the purines are adenine and guanine.
adenine and guanine are both purines. It is a larger structure than pyrimidines.
A nitrogen containing ring compound that is found in DNA and RNA. Examples of purines are adenine and guanine.
A nitrogen-containing, single-ring, basic compound that occurs in nucleotides of DNA and RNA. The purines in DNA and RNA are adenine and guanine.