Question

Which of the given nitrogenous bases is/are purine?
a. Cytosine
b. Adenine
c. Uracil
d. Guanine

• A. Both a and c
• B. Only c
• C. Both b and d
• D. Only a

Answer 1

Answer: (C)

Adenine and guanine are purine nitrogenous bases.