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Why does bytosine make pair with guanine...

Why does bytosine make pair with guanine and not with adenine ?

A

C and A are both polar

B

C-A pair would not reach across the double helix

C

C-A pair would be too wide to fit in the double helix

D

The functional groups that form H-bond are not complementary between C and A

Text Solution

Verified by Experts

The correct Answer is:
B
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