The double-helix structure of DNA is the result of
A) complementary base pairings.
B) purines bonding with pyrimidines.
C) the phosphodiester bonds between deoxyribose and phosphate.
D) hydrogen bonding of the two complementary polynucleotide strands.
E) ionic bonding of base pairs.

Question

Quizplus · Accepted Answer

The double-helix structure of DNA is the result of hydrogen bonding between the complementary base pairs adenine (A) with thymine (T), and guanine (G) with cytosine (C). The hydrogen bonds occur between the nitrogenous bases and hold the two polynucleotide strands together, forming the characteristic double-helix structure.

The Double-Helix Structure of DNA Is the Result of