A member asked:

If father type o- blood, mother type o+ blood, would all their children have to have type o blood? also, more likely children be o+ than o-?

4 doctors weighed in across 2 answers

Dr. Lawrence Wasser answered

All O : All the children would be type o. They could be + or -, as the 0 + mother could be a carrier for the -.

Dr Ferguson agreed

Answered 4/8/2015

4.9k views

Thank

Dr. Richard Pollard answered

Specializes in Anesthesiology

See below: All children of this union will be type o. The rhesus typing is more complicated, but it is more likely that they would be positive.

Dr Maes agreed

Answered 5/14/2017

4.9k views

Thank

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A member asked:

If father type o- blood, mother type o+ blood, would all their children have to have type o blood? also, more likely children be o+ than o-?

4 doctors weighed in across 2 answers

Dr. Lawrence Wasser answered

Dr Ferguson agreed

Dr. Richard Pollard answered

Dr Maes agreed

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