Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Purines possess nitrogen at:
A
1,2,4 and 6 positions
B
and 7 positions C
and 9 positions
D
and 8 positions
Text Solution
Verified by ExpertsThe correct answer is:
C
The two types of nitrogenous bases in the nucleotides are purines and pyrimidines. Purines are 9 membered double ringed nitrogen bases which possess nitrogen at 
and 9 position, e.g., adenine and guanine. Pyrimidines are six membered nitrogen bases that contain nitrogen at 1 and 3 position, e.g., cytosine, thymine and uracil.
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