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VMMC VMMC Medical Solved Paper-2004

  • question_answer
    The most important example of point mutation is found in a disease called

    A) thalassemia       

    B)        night blindness

    C)        Downs syndrome

    D)         sickle cell anaemia

    Correct Answer: D

    Solution :

    Gene mutation that involve the substitution, deletion or insertion of a single base pair are called point mutation. Sickle cell anaemia is caused due to base replacement leading to replacement of 6th amino acid in the B-chain. Glutamic acid is replaced by valine and causes sickle cell anaemia.


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