Which of the Following Best Describes the Double-Helix of DNA

Question

Which of the following best describes the double-helix of DNA?
A) It has directionality
B) The strands are arranged in an anti-parallel arrangement
C) The strands are complementary
D) All of the answers are correct

Accepted Answer

All of the answers are correct. The double-helix of DNA has directionality (from 5' to 3'), the two strands are arranged in an anti-parallel arrangement (running in opposite directions), and the two strands are complementary (base pair with each other in a predictable way).