In a medico-legal case of accidental intercha | vedclass

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(A) The inheritance of $ABO$ blood groups is determined by three alleles: $I^A$,$I^B$,and $i$. Parents with blood group $O$ have the genotype $ii$. If

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Both husband and wife of group $O$

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(A) The inheritance of $ABO$ blood groups is determined by three alleles: $I^A$,$I^B$,and $i$. Parents with blood group $O$ have the genotype $ii$. If both parents have blood group $O$,their genotype is $ii 	imes ii$. All offspring from such a cross will have the genotype $ii$,resulting in blood group $O$. Therefore,it is genetically impossible for parents with blood group $O$ to have a child with blood group $A$.

In a medico-legal case of accidental interchange between two babies in a hospital,the baby with blood group $A$ could not be the child of parents with which of the following blood group combinations?

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