A. Ionic bonds
B. Hydrogen bonds
C. Covalent bonds
D. Peptide bonds
Answer: Hydrogen bonds
A. Ionic bonds
B. Hydrogen bonds
C. Covalent bonds
D. Peptide bonds
Answer: Hydrogen bonds
Additional Information: Hydrogen bonds between complementary bases (adenine-thymine and cytosine-guanine) hold the two DNA strands together.
Subjects: Biochemistry, Biology