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

Explanation:

• Presence of ribose in the backbone: DNA has deoxyribose, not ribose (which is in RNA). So this is incorrect.
• Ion channels: These are related to the movement of ions across membranes, not DNA replication accuracy.
• Base - pairing according to certain rules: DNA has specific base - pairing rules (A - T and G - C). This complementary base - pairing ensures that during replication, the new strand is synthesized accurately based on the template strand.
• Single - helix shape: DNA has a double - helix structure.

Answer:

base pairing according to certain rules