2. Solved Papers
  3. JEE Main & Advanced

JEE Main & Advanced AIEEE Solved Paper-2003

  • question_answer
    The reason for double helical structure of DNA is operation of     AIEEE  Solved  Paper-2003

    A) van der Waals' forces

    B) dipole-dipole interaction

    C) hydrogen bonding

    D) electrostatic attractions

    Correct Answer: C

    Solution :

    Hydrogen bonding is involved for molecular force in the DNA molecule. Watson and Crick observed the purine pyrimidine type  of  hydrogen   bonding   (instead   of purine-purine and pyridine-pyridine)


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