A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits – blood group A or O – is dominant? Why or why not?
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Because the blood group O is expressed so the blood group O is dominant and the blood group A is recessive
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somraj2:
blood group O has AandB antigen..and father already has A blood group which has A antigen so A is the dominant group
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