Question

why purine do not make bond with purine?​

Answer 1

Answer:

Yes, Right, Purine do never make bond with Purine Because of

You already know that purines bond with pyrimidines, but why can't purines bond with purines or pyrimidines bond with pyrimidines? It's because there is not enough space for two purines to fit within the helix and too much space for two pyrimidines to get close enough together for hydrogen bonds to form between them.

Answer 2

Answer:

$\underline{\huge{Answer:-}}$

The two most common base pairs are A-T and C-G. These nucleotides are complementary —their shape allows them to bond together with hydrogen bonds. In the C-G pair, the purine (guanine) has three binding sites, and so does the pyrimidine (cytosine).Apr 21, 2016