What Interaction Between Complementary Bases Holds the Two Strands of a DNA

Question

What interaction between complementary bases holds the two strands of a DNA molecule together?
A) ionic bonds
B) covalent bonds
C) hydrogen bonds
D) disulfide bridges
E) van der Waals forces

Accepted Answer

Hydrogen bonds between complementary bases (adenine with thymine and cytosine with guanine) are responsible for holding the two strands of a DNA molecule together.