The complementary base pairing in DNA is important because it:
- A. Maintains the tertiary structure of enzymes
- B. Provides energy for all cell metabolism
- C. Enables protein to fold properly
- D. Allows DNA act as a genetic blueprint during replication
Explanation
Because adenine always pairs with thymine and guanine with cytosine, each strand specifies the sequence of the other, so separating the two gives two templates that produce identical copies. This is precisely what Watson and Crick noted on proposing the structure. Protein folding and enzyme structure depend on interactions between amino acid side chains, not on base pairing.
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