Can two A-positive parents have an O-negative baby? π©Έπ€―
Here is how the science works:
1️⃣ The ABO System: Blood type A can genetically be 'AA' or 'AO’.
If both parents are 'AO', the 'O' is hidden, meaning there is a 25% chance the baby inherits the hidden 'O' from both parents to become Type O.
2️⃣ The Rh Factor (+/-): Positive (+) is a dominant trait, while Negative (-) is recessive.
If both parents carry a hidden negative gene, there is a 25% chance they both pass it down to their child.
When you combine these probabilities, there is a perfectly normal 1-in-16 chance of two A-positive parents having an O-negative baby.
It all comes down to basic Mendelian genetics, which is truly the science that saves marriages!








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