- However she is not convinced that the baby is belong to her because her husband has AB blood group. She claimed there might be swapping of babies in the nursery. EXPLAIN.
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Answer by Roland
A parent gives 1 dose of a gene to a child.
The type O mother has only O-carrying eggs,
but her husband has sperm that carry either A or B.
The type O child has a genotype of OO, so she got an O from each parent.
BUT, the husband has no O to give. So that baby cannot be his.
Maybe another man . . . naw, that couldn’t be it.