What are two types of nitrogenous bases found in nucleic acids?

1 Answer
Jun 24, 2018

You mean purines and pyrimidines??


Nitrogenous bases are split into two different types: the purines (adenine and guanine) and the pyrimidines (thymine, cytosine, and uracil).

A purine will hydrogen-bond to a pyrimidine. Adenine always bonds with thymine (in #"DNA"#) or with uracil (in #"RNA"#) with two hydrogen bonds. Guanine will always bond with cytosine. Note that the bonding can happen vice-versa as well.