How is it possible that my daughter is blood type O negative if I

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How is it possible that my daughter is blood type O negative if I am O positive & her father is A positive? - Quora

My daughter is AB positive. My blood type is B negative her father is A positive. How is this possible? - Quora

Rhesus-negative blood and pregnancy

Can parents with A positive and A negative blood types have a child with O positive blood? - Quora

Is it safe for a mom with blood group O Positive to have a child with a dad with blood group O Negative? - Quora

Type O Blood

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Can an O positive mom and an O negative dad have a child with another blood-type? - Quora

If a mother has O positive blood and the father has B positive blood, what blood type will their daughter be? - Quora

Can the child be a positive if both parents are O positive? - Quora