What interaction between the phosphate and the carbohydrate of a nucleotide holds the backbone of a DNA strand together?
A)covalent bonds
B)van der Waals forces
C)hydrogen bonds
D)disulfide bridges
E)ionic bonds

Question

Quizplus · Accepted Answer

The backbone of a DNA strand is held together by covalent bonds, specifically phosphodiester bonds, between the phosphate group of one nucleotide and the sugar (carbohydrate) of the next nucleotide.

What Interaction Between the Phosphate and the Carbohydrate of a Nucleotide