In a DNA molecule,the base pairs provide information,and the sugar-phosphate backbone does not,because
A) the base pairs are all the same, but the sugar-phosphate backbone varies.
B) there are eight types of base pairs.
C) there are eight types of bases.
D) the bases form a sequence, and the sugar-phosphate backbone does not.
E) the sugar-phosphate backbone is highly unstable.

Question

Quizplus · Accepted Answer

The base pairs, specifically the sequence of the bases (adenine, guanine, cytosine, and thymine), provide the genetic information that is transcribed and translated into proteins. The sugar-phosphate backbone, on the other hand, serves a structural role by supporting and protecting the base pairs, but does not contribute to the genetic information. Therefore, the best choice is D.

In a DNA Molecule,the Base Pairs Provide Information,and the Sugar-Phosphate