Purines and pyrimidines

The molecular structure of nucleic acids was explored by isolating purines and pyrimidines. Two different purines, adenine (A) and guanine (G) and three different pyramidines, uracil (U), cytosine (C), and thymine (T)
 Albrecht Kossel Germany 1885 Purines and pyrimidines

The molecular structure of nucleic acids was explored by isolating purines and pyrimidines. Two different purines, adenine (A) and guanine (G) and three different pyramidines, uracil (U), cytosine (C), and thymine (T)