Which of the following is not part of the backbone of DNA?
A) a bases
B) the phosphates
C) the sugars
D) None, they are all part of the backbone.

Question

Quizplus · Accepted Answer

The nitrogenous bases are not part of the backbone of DNA. They are attached to the sugar molecules and protrude into the interior of the double helix structure. The backbone is composed of alternating sugar-phosphate groups, which form the structural framework of the DNA molecule.

Which of the Following Is Not Part of the Backbone