Definition: Purines are a group of chemical compounds that include the following elements: thymine (T), guanine (G), cytosine (C), and uracil (U). These compounds are important components in the genetic code, but they can also be present naturally in the human body as part of the purine nucleotide sequence. Purines are classified into three main groups based on their chemical structure: purine monomers, purine dimers, and purine triph
purines