Question

The two strands of a DNA molecule are said to be antiparallel. What does this mean?

A. They are oriented in opposite directions.
B. They vary in their distance from each other.
C. They are oriented perpendicular to each other.
D. The bases face each other rather than the backbones.

Answer 1

The answer is A. They are oriented in opposite directions. Hint in the word antiparallel meaning oriented in opposite directions. Hope this helps!! :D

Answer 2

The DNA molecule is composed of two strands with the help of hydrogen bonds which is doubl helix At each end of the double helix, one strand is 5' and the other is 3'.the two strands are anti parallel so the correct option is
They are oriented in opposite directions
hope it helps