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Molecular Basis...

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  • Question 1
    4 / -1

    Which of the following phenomena was experimentally proved by Meselson and Stahl?

  • Question 2
    4 / -1

    To prove that DNA is the genetic material, which radioactive isotopes were used by Hershey and Chase(1952) in their experiments?

  • Question 3
    4 / -1

    Choose the correct answer from the alternatives given:
    Watson and Crick (1953) proposed DNA double helix model and won the Nobel Prize; their model of DNA was based on
    (i) X-ray diffraction studies of DNA done by Wilkins and Franklin.
    (ii) Chargaffs base equivalence rule.
    (iii) Griffiths transformation experiment.
    (iv) Meselson and Stahls experiment.

  • Question 4
    4 / -1

    Q. The process of transformation is not affected by which of the following enzymes?
    A. DNase
    B. RNase
    C. Peptidase
    D. Lipase

  • Question 5
    4 / -1

    Choose the correct answer from the alternatives given:
    Which of the following criteria should be fulfilled by a molecule to act as a genetic material?
    (i) It should be able to replicate.
    (ii) It should be structurally and chemically stable.
    (iii) It should be able to undergo slow mutations.
    (iv) It should be able to express itself in the form of Mendelian characters.

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