Chemistry for Today  Chapter 21 Exercise 2/8 

2. Use the models below to complete the statements.
 
a. Identify each as either a base or nucleotide.
 
b. State whether each is present in DNA, RNA, or both.
  2.1* 2.2* 2.3
  2.4 2.5 2.6

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