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DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    In blood group typing in human, if an allele contributed by one parent is \[{{I}^{4}}\] and an allele contributed by the other parent is \[i\], the resulting blood group of the offspring will be

    A)  A              

    B)  B

    C)  AB             

    D)  0

    Correct Answer: A

    Solution :

    The blood group type in human provides an example of multiple allelism (ie, presence of more than two allele for  one gene). There are three A, B and 0 blood groups allele usually given the symbol \[{{I}^{A}},{{I}^{B}}\], and \[{{I}^{i}}.\,{{I}^{A}}\] and \[{{I}^{B}}\] are codominant to each other but both are dominant to \[{{I}^{i}}\]. The offspring of parents having \[{{I}^{A}}\] and \[{{I}^{i}}\] allele will be \[{{I}^{A}}{{I}^{i}}\] having blood group A. \[A-{{I}^{A}}{{I}^{i}}\] \[B-{{I}^{B}}{{I}^{i}}\] \[AB-{{I}^{A}}{{I}^{B}}\] \[O-{{I}^{i}}{{I}^{i}}\]


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