In the comparison of a DNA molecule to a twisted ladder, the upright sides of the ladder are
A) hydrogen bonds between bases.
B) nitrogenous bases linked to phosphate.
C) deoxyribose linked to phosphate.
D) deoxyribose linked to sulfate.
E) nitrogenous bases linked together.

Question

Quizplus · Accepted Answer

The upright sides of the ladder in a DNA molecule are made of alternating deoxyribose sugar and phosphate groups, forming the sugar-phosphate backbone.

In the Comparison of a DNA Molecule to a Twisted