alleryIn the Watson-Crick double helix, adenine pairs with thymine via how many hydrogen bonds?
A3
B1
C2
D4
Answer & Solution
Correct answer: C. 2
**A=T → 2 H-bonds**. **G≡C → 3 H-bonds**.
GC-rich DNA is more thermostable than AT-rich because of the stronger G-C pairing.
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