Multiple Choice
Why can a guanine not be paired with adenine?
A) Guanine is only found in RNA and adenine is found only in DNA.
B) Guanine can form three hydrogen bonds and adenine can form two.
C) Guanine can form only two hydrogen bonds and adenine can form three.
D) Guanine can only pair with thymine.
Correct Answer:

Verified
Correct Answer:
Verified
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