Manipal Medical Manipal Medical Solved Paper-2006

  • question_answer
    Which of the following processes/technique was used by Watson and Crick for giving double helical DNA model?

    A)  Differential staining

    B)  X-ray diffraction

    C)  Auto radiography

    D)  All of the above

    Correct Answer: B

    Solution :

     When the crystals is X-rayed, the way in which the beam is diffracted reflects the pattern of the molecule in the crystals. The crossed pattern in the centre shows that DNA is a helical structure. Which is due to hydrogen bonded bases.


You need to login to perform this action.
You will be redirected in 3 sec spinner