Understanding DNA Structure and Function

What is the primary structural form of DNA?

• Triple helix

• Double helix

• Quadruple helix

• Single helix

Which nucleotides are used by DNA to encode genetic information?

• A, G, C, U

• A, U, C, G

• A, T, C, G

• A, T, C, U

How do the two strands of DNA run in relation to each other?

• Parallel

• Perpendicular

• Anti-parallel

• Convergent

What type of bonds exist between the nucleotides within a single DNA strand?

• Metallic bonds

• Hydrogen bonds

• Ionic bonds

• Covalent bonds

Why can DNA strands separate during replication without losing their integrity?

• Because of strong ionic bonds

• Due to weak hydrogen bonds between strands

• Because of metallic bonds

• Due to covalent bonds between strands