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A man with blood group A marries a woman with blood group O, and their daughter has blood group O. Is this enough information to determine which trait (A or O) is dominant? data/crosses

Question
A man with blood group A marries a woman with blood group O, and their daughter has blood group O. Is this enough information to determine which trait (A or O) is dominant? data/crosses
Yes, it clearly shows A is dominant
Yes, it clearly shows O is dominant
No, this single case alone is not enough to conclusively determine dominance without more
Yes, because O trait appeared in the child, it must be dominant
Answer
No, this single case alone is not enough to conclusively determine dominance without more
Detailed Explanation
A single family's outcome is not sufficient evidence; robust conclusions about dominance require larger-scale crosses and ratio data, as Mendel did with peas.
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