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Pregnancy and Parenting: Multiples Community
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Blood typing possiblility of offspring

  
  I understand that that the most accurate method of paternity testing is DNA. What is the probability of a child that the mother's blood type is O, and the child's didn't receive the mother's blood type and the alleged father's blood type is A+. If the the child's blood type isn't A+ should this conclusively exclude him?
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Avatar universal
MEDICAL PROFESSIONAL
HI,
The baby not having the father’s blood group does not give the father a clean chit. There is a 50% chance that the baby can have the mother’s blood group and take only the Rh factor from the father which can be positive in both. Consult your Doctor.
The answer is based on information provided. Exact advice is not possible without a proper examination and investigations. You are requested to consult your Doctor. Take care and keep us posted.
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