According to the highly specific Watson and Crick double-helix structural model of DNA, which of the — Biomolecules Chemistry Question
Question
According to the highly specific Watson and Crick double-helix structural model of DNA, which of the following rules strictly governs the complementary base pairing across the two anti-parallel strands?
Answer: C
💡 Solution & Explanation
Complementary base pairing in the DNA double helix is strictly dictated by specific hydrogen bonding geometries. Adenine ($A$) always pairs with Thymine ($T$) utilizing exactly two hydrogen bonds, whereas Guanine ($G$) pairs with Cytosine ($C$) utilizing exactly three hydrogen bonds.
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