Purines have ____ ring(s), (each) containing _____ nitrogen(s), whereas pyrimidines have _____ ring(s), (each) containing _____ nitrogens.
A) 1; 1; 1; 1
B) 1; 2; 1; 2
C) 2; 1; 1; 2
D) 2; 2; 1; 1
E) 2; 2; 1; 2

Question

Quizplus · Accepted Answer

Purines have 2 rings, each containing 2 nitrogens, whereas pyrimidines have 1 ring, each containing 2 nitrogens. Choice E matches these descriptions.

Purines Have ____ Ring(s), (Each) Containing _____ Nitrogen(s), Whereas Pyrimidines

Purines Have Ring(s), (Each) Containing _ Nitrogen(s), Whereas Pyrimidines