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NEET
Exam
NEET
Subject
Botany
Chapter
Biomolecules (B)

NEET · Botany · Biomolecules (B)

What is the direction of the two strands of polynucleotides in DNA...

What is the direction of the two strands of polynucleotides in DNA according to the Watson-Crick model?

Options

  1. AParallel
  2. BAntiparallel
  3. CPerpendicular
  4. DInterweaved

Correct answer

B. Antiparallel

Step-by-step solution

A nucleic acid containing deoxyribose is called deoxyribonucleic acid (DNA) while that which contains ribose is called ribonucleic acid (RNA). One of the secondary structures exhibited by DNA is the famous Watson-Crick model, which says that DNA exists as a double helix.The two strands of polynucleotides in DNA according to the Watson-Crick model are antiparallel, meaning that they run in opposite directions.

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