A compound that is one of the four constituent bases of nucleic acids. A purine derivative, it is paired with thymine in double-stranded DNA.
- Alternative name: 6-aminopurine; chemical formula: C5H5N5
- There are four types of nucleotides in DNA, each containing one of four bases - adenine, guanine, cytosine, or thymine.
- Causes and effects The structure of thalidomide is similar to that of the DNA purine bases adenine and guanine.
- The strands consist of sugar and phosphate groups, the sugars being attached to a base - adenine, thymine, guanine, or cytosine.
Late 19th century: coined in German from Greek adēn 'gland' + -ine4.
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