Q. The two polynucleotide chains in DNA are
A) discontinuous
B) antiparallel
C) semiconservative
D) parallel
Explanation
[Solution from source] In the double helix one strand runs 5'->3' and its partner 3'->5', so the chains are antiparallel. 'Semiconservative' describes how DNA replicates, not how its strands are arranged. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.