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  3. JIPMER

JIPMER Jipmer Medical Solved Paper-1997

  • question_answer
    The point mutations A to G, C to T, C to G and  T to A in DNA are:

    A) transition, transition, transversion and transversion respectively

    B)    transition, transversion, transition and transversion respectively

    C)    transversion, transversion, transition and  transversion respectively

    D)     all four are transition

    Correct Answer: A

    Solution :

    Transition: In transition mutation purine is replaced by purine and pyrimidine is replaced by another pyrimidine e.g., A to G and C to T. Transverion: Intransversion purine is replaced by pyrimidine e.g. T to A and C to G.


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