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A man with blood group A marries a woman...

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 `0-` is dominant? Why or why not?

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No, because either blood group A or O can be dominant.
Possibility I: Blood group A is dominant and blood group O is recessive
Possibility II : Blood group O is dominant and blood group A is recessive.
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A man ,Yith blood group A marries a woman with blood group O and their daughter has. blood group 0. Is this information enough to tell you which of the traits - blood group A or O. Is dominant? Why or why not?

A man with blood group A marries a woman with blood group O and their daughter has blood group 0. 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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