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NEET Sample Paper NEET Sample Test Paper-45

  • question_answer
    A bacterium with completely radioactive DNA was allowed to replicate in a non-radioactive medium for two generation what % of the bacteria should contain radioactive DNA-

    A) \[100%~\]                    

    B) \[50%\]

    C) \[25%\]             

    D) \[12.5%\]

    Correct Answer: B

    Solution :

    Total number of DNA after two generation = 4 Radioactive thymidine \[DNA\,\,=\,\,2\] \[\frac{2}{4}\,\,\times \,\,100\,\,=\,\,50\,%\]


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