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Question

A man with blood group A has married a women of blood group ofOand their daughter has got ablood group of O.Is information enough to tell u which of the trait is dominant? Why? Why not?

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Solution

No. This information is not sufficient to determine which of the traits − blood group A or O − is dominant. This is because we do not know about the blood group of all the progeny.

Blood group A can be genotypically AA or AO. Hence, the information is incomplete to draw any such conclusion.


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