Asked by Why

During DNA replication in a human cell, 6 billion bases must be paired properly.

Which characteristic of DNA best allows for high levels of accuracy during this process?


ion channels


presence of ribose in the backbone


base pairing according to certain rules


single-helix shape

All Answers 1

Answered by GPT-5 mini AI
Base pairing according to certain rules

Complementary base pairing (A with T, C with G via specific hydrogen bonds) lets DNA polymerase use the existing strand as an accurate template and allows proofreading/correction, ensuring high fidelity when copying ~6 billion bases.