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We are looking for the possible blood types of a baby.

Parental information:

  • Mother type O neg -- can only have type OO with Rh (--): Genes: O and (-)
  • Father type A neg -- can have type AA or AO with Rh (--): Genes: A, O and (-)

Baby recieves one gene from each parent:

  • Baby is type AO (--) >> Type A neg
  • Baby is type OO (--) >> Type O neg

YES, the baby could be type O, IF the father is genotypically AO.

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10y ago
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Wiki User

11y ago

Yes, but both parents will need to by heterozygous (father Ao, mother Bo). This is because O is the recessive blood type.

If either of the parents were homozygous, AA or BB, it would not be possible to have a child with O type blood.

If one of the parents has negative blood, or if both are heterzygous (+-), then it is possible to have a child with negative blood type.

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15y ago

Blood groups, the ABO system:

Yes, they can have an A baby or an O baby.

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15y ago

No. Two "O" parents can only have "O" children.

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Wiki User

11y ago

Yes

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Q: Can an O mother have a child with A and dad group O?
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