Complementary DNA Strands are Held Together By

Question

Complementary DNA strands are held together by
A) ionic bonds.
B) hydrogen bonds.
C) covalent bonds.
D) phosphodiester bonds.

Accepted Answer

Complementary DNA strands are held together by hydrogen bonds between the nitrogenous bases. Ionic bonds, covalent bonds, and phosphodiester bonds play roles in other aspects of DNA structure, but not in the specific pairing of complementary strands.