Question

purine posses nitrogen at​

Answer 1

Answer:

Purine has two cycles: a six-membered pyrimidine ring and a five-membered imidazole ring fused together. Four nitrogen atoms are present at the 1, 3, 7, and 9 positions. The numbering of purine starts with the first nitrogen of the six-membered ring and then proceeds in an anticlockwise direction