Each DNA strand has a backbone that consists of alternating _____.
A) amino acids
B) nitrogen-containing bases
C) hydrogen bonds
D) sugar and phosphate molecules
E) types of sugars

Question

Each DNA strand has a backbone that consists of alternating _____.​
A) ​amino acids
B) ​nitrogen-containing bases
C) ​hydrogen bonds
D) ​sugar and phosphate molecules
E) ​types of sugars

Quizplus · Accepted Answer

The backbone of each DNA strand is made up of alternating sugar (deoxyribose) and phosphate molecules, which are connected by phosphodiester bonds.

Each DNA Strand Has a Backbone That Consists of Alternating