Question

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? base pairing according to certain rules single - helix shape presence of ribose in the backbone ion channels

Explanation:

DNA replication accuracy relies on base - pairing rules (A - T, G - C). Single - helix shape is incorrect (DNA is double - helix). Ribose is in RNA (DNA has deoxyribose). Ion channels are not related to DNA replication accuracy.

Answer:

base pairing according to certain rules