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A member asked:

Docs, could a o positive mother and an o negative father have a child that is rh negative?

A doctor has provided 1 answer
Dr. James Ferguson answered

Yes: They could also have one that is rh positive.

Dr Novick agreed

Answered 9/4/2018

4.1k views

Thank

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If a child's blood type is o positive could the alleged father's blood type be b+?The mother has o+ blood

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Is it possible for an inherited chromosomal duplication to have a positive effect (e.g. advanced development) in a parent but a negative effect (e.g. delayed development) in their child? Or are the effects only either neutral or negative?

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If a fetus has an Rh negative mother and an Rh positive father, will a miscarriage occur?

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