Can offspring have a diffrent RH factor than their parents??

Question:

My mother is kind of confused about my blood type. My father is A+ and my mother is O+, but I am O--.

Just being curious.

thank you for your time;
bdraft

Answers:
Each person has a pair of genes for blood type. Each one is either A.A, A.O, B.B. B.O, A.B or O.O.

Your father is A.O and he contributed the O part to you. Mom must be O.O or A.O or B.O and she contributed the O part also. Hence you are O.O.

What about grand parents and great grand parents? How far back did you go? There's only any trouble if the mom is Rh- and the baby is Rh+ so there may not have been a reason to check before. Or, before Rh testing, was there any unexplained miscarriages in your family history?

Can offspring have a diffrent RH factor than their parents??

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