Ok, my husband is a type o+, the man we believe to be his father is also a 0+, as his that mans other biological son. My husband (the o+) has an older brother who is a B+ blood type, they have the same mother(deceased-blood type unknown). My question is, does it take 2 os to make an o? an ao mom can make an o son with one man who is also an o and a b son with another man right? glory i am confused! can only an o and an o make another o? thanks!
Tags: