Can to parents with positive blood make a child that has negative blood type
Parents who both have rhesus positive blood types can only produce children who have a positive rhesus factor. The only way that the child can be rhesus negative is if at least one of the parents to have a negative rhesus factor.
I'm rh neg so is hubby we only make neg children. Pos and pos can only make pos. but a neg mom and pos dad become a problem for mom and baby
Parents with both -ve Rh factor can only produce -ve Rh factor child. But any one of them with +ve Rh factor can produce both +ve and -ve Rh factor child.