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Expectant and Postpartum Moms
Reply to "Blood type changed during pregnancy"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous][b]My husband and I are both A+. Our son is O+. Not sure how that happened.[/b] I’m kind of disappointed that he doesn’t have the same blood type as either of us (because it’s nice to have things in common with your children), but it is what it is.[/quote] There’s 6 possible genotypes when it comes to blood type - OO, AA, AO, BB, BO, and AB. Parents that are both type A can have a type O child if BOTH parents have the AO genotype rather than the AA genotype. You both inherited an A allele from one of your parents and an O allele from your other parent. The O allele is “hidden” because A dominates O. OO = type O blood AA and AO = type A blood BB and BO = type B blood AB = type AB blood[/quote] Explain how my kid is O when I’m AB and his dad is O. I don’t have an O allele to pass along. Yes, he’s our biological son.[/quote]
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