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MDCAT Biology QUESTION #4281
Question 1
The complementary base pairing in DNA is important because it:
  • Maintains the tertiary structure of enzymes
  • Provides energy for all cell metabolism
  • Enables protein to fold properly
  • Allows DNA to act as a genetic blueprint during replicationāœ”ļø
Correct Answer Explanation
Complementary base pairing (A–T, G–C) ensures accurate replication — each strand acts as a template, making DNA the reliable genetic blueprint.