Chemistry for Today  Chapter 21 Exercise 1/8 

1. There are 5 heterocyclic nitrogen-containing bases in nucleic acids. These compounds are derived from either purine or pyrimidine, the parent compounds.
 
 
Purine
Pyrimidine
Name the following bases using the complete name and the one-letter abbreviation. Decide what is the parent compound for each of the following models.
  1.1* 1.2 1.3
  1.4 1.5    

Index || Exercise 1 2 3 4 5 6 7 8 Answers C H O N