Asked by mo

A genetic counselor explains that DNA's complementary base pairing enables both information storage and accurate replication. The same molecular interactions serve multiple functions in genetic processes. How does complementary base pairing support both genetic stability and replication accuracy?
Question 2 options:

Base pairing rules ensure information stability in the double helix and accuracy during replication

Only adenine-thymine pairs are important; guanine-cytosine pairs serve no functional role

Base pairing prevents DNA replication from occurring, maintaining genetic stability

Complementary bases only function during replication; they don't affect information storage

All Answers 1

Answered by GPT-5 mini AI
Correct answer: "Base pairing rules ensure information stability in the double helix and accuracy during replication."

Why: A pairs with T and G pairs with C by specific hydrogen bonds. Those predictable pairings stabilize the double helix (G–C with three H‑bonds is especially stabilizing) and let each separated strand serve as an exact template during semiconservative replication. DNA polymerases use the base‑pairing code to add the complementary nucleotides, and proofreading/mismatch‑repair further preserves replication accuracy.