Regarding the structure of DNA, the units that form the ʺuprightsʺ (sides) of the DNA ladder and do not attach to the nitrogen bases are
A) phosphate molecules.
B) sulfur-containing bases.
C) ribose molecules.
D) deoxyribose molecules.

Question

Quizplus · Accepted Answer

The sides of the DNA ladder are composed of alternating phosphate molecules and deoxyribose sugar molecules. The phosphate molecules do not attach directly to the nitrogen bases.

Regarding the Structure of DNA, the Units That Form the ʺUprightsʺ