What would happen to the helix-3 interaction with DNA if a mutation occurred that altered this adenine (as shown) to guanine?
A. The integrity of the interaction would increase because the hydrogen bonds would still be able to form and would be stronger.
B. The integrity of the interaction would remain the same because the same two hydrogen bonds would still be able to form.
C. The integrity of the interaction would decrease because one of the two hydrogen bonds would not be able to form.
Ans: C. The integrity of the interaction would decrease because one of the two hydrogen bonds would not be able to form.
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