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NEET Biology Molecular basis of Inheritance / विरासत का आणविक आधार Question Bank Self Evaluation Test - Molecular Basis of Inheritance

  • question_answer
    Hershey and Chase used radioactive \[^{35}S\] and \[^{32}P\]in experiments to provide evidence that DNA was the genetic material. These experiments pointed to DNA because:

    A) Progeny viruses retained \[^{32}P\] but not\[^{35}S\].

    B) Retention of \[^{32}P\] in progeny viruses indicated that DNA was passed on.

    C) Loss of \[^{35}S\] in progeny viruses indicated that proteins were not passed.

    D) All of the above

    Correct Answer: D

    Solution :

    [d] Only DNA incorporates radioactive P. Radioactive S is incorporated into proteins. The fact that progeny virus retained radioactive P and not: radioactive S indicates that DNA is heritable and protein is not.


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