NEET Biology Principle Of Inheritance And Variation Question Bank Self Evaluation Test - Principles of Inheritance and Variation

  • question_answer
    Which of the following parental phenotypes would produce offspring with blood group phenotypes in the expected ratio of 1 type A: 1 type B?

    A)
    Blood group of mother Blood group of father
    A B
     

    B)
    AB AB
     

    C)
    AB B
     

    D)
    AB O
     

    Correct Answer: D

    Solution :

    [d] The mother would have genotype \[{{I}^{A}}{{I}^{B}}\] and the father would have genotype \[{{I}^{O}}{{I}^{O}}\] Thus, the two genotypes possible for their offspring would be \[{{I}^{A}}{{I}^{O}}\] and \[{{I}^{B}}{{I}^{O}}\] with equal probability. Hence, the expected phenotypes would be 1 type A: 1 type B.


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