What are the four kinds of nitrogen bases in DNA?
Asked By Raj Kapoor
Nitrogen Bases of DNA - These are rather complex single or double ring
structures containing nitrogen and are attached to the carbon of the
sugar. Nitrogen bases are of two types based on the number of rings.
Purines are double ringed nitrogenous bases which are linked to sugar
by using nitrogen present at 9' -position. Adenine and guanine come
under this group.