Both deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are made up of nucleotides which consist of three parts:
Nitrogenous Base. Purines and pyrimidines are the two categories of nitrogenous bases. ...
Pentose Sugar. In DNA, the sugar is 2'-deoxyribose. ...
Phosphate Group. A single phosphate group is PO43-.
