Question

A man with blood group A marries a women with blood group O. Their daughter has a blood group O. Show the cross to illustrate the same.

Answer 1

There are 50% chances that their child will have blood group O

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Answer 2

A man with blood group A (Hybrid)marries a women with blood group O. Their daughter has a blood group O .

• The cross will be between blood group A (IᵃI⁰) and blood group O (I⁰I⁰) .
• When IᵃI⁰ and I⁰I⁰ will be crossed a progeny with I⁰I⁰ will form i.e, O blood group.