NEET Biology Biomolecules / जैव-अणु Question Bank Self Evaluation Test - Biomolecules

  • question_answer
    All the following radio nuclei are used in the study of DNA except:

    A) \[^{14}C\]                   

    B)        \[^{32}P\]

    C) \[^{15}N\]                   

    D)        \[^{51}Cr\]

    Correct Answer: D

    Solution :

    [d] Chromium is not used to label nucleic acids since it is not an atom found in nucleic acids and nucleoprotein. It is used for the study of RBC kinetics. \[^{35}S\] is tagged to methionine which is then incorporated to newly synthesised proteins. \[^{35}P\] and \[^{15}P\] are incorporated into newly synthesizing DNA strands.


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