In double-stranded DNA, the sugar-phosphate backbones are:
A)on the outside, separated by grooves of equal size.
B)on the outside, separated by grooves of unequal size.
C)on the inside, separated by grooves of equal size.
D)on the inside, separated by grooves of unequal size.

Question

Quizplus · Accepted Answer

In the double helix structure of DNA, the sugar-phosphate backbones are on the outside, and there are two grooves of unequal size known as the major and minor grooves. This arrangement is crucial for the binding of proteins to specific DNA sequences.

In Double-Stranded DNA, the Sugar-Phosphate Backbones Are