A member asked:

What are the possibilities for child's blood type if mom is o+ and dad is o-?

5 doctors weighed in across 2 answers

Only two.: O positive or o negative.

Answered 9/19/2014

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Dr. Richard Pollard answered

Specializes in Anesthesiology

Definitely O: The rhesus factor (+ or -) can be a little more tricky. I would guess o+.

Answered 4/24/2015

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