To have a blood type O child do one of the parents have to have type O as well?

Question

To have a blood type O child do one of the parents have to have type O as well?

Answer 1

No, but because the A and B blood groups are dominant, both parents would have to have a recessive O gene.

Answer 2

No, but neither parent can be type AB.  

Answer 3

No, because there are dominate and recessive traits.  

Answer 4

No, if both parents have the O gens then its possible  

Answer 5

My son has O but my husband and I don't. So no, neither of the parents have to have O.  

Answer 6

c**p, i should've paid more attention to that topic in biology. sorry. =/

Answer 7

Nope, I recently found out at my last OB appointment I'm type O blood, my mom is B and my dad is A+.  The clinic even double checked and told me that it is not uncommon to be O with neither of the parents having the O gene, it has something to do with the Rh, just rest assured it's possible, I'm living proof!

Answer 8

Blood type is determined by inheritance so

I'm pretty sure one of the parents needs an O.

Answer 9

Pretty sure they do! My husband has type O & so does all 4 of our kids!

Answer 10

yes i believe