Genetics and Blood Typing in newborn

Patient: If one parent’s blood type is O negative, and the other parent is O positive, can their child have a bloodtype of A positive?

Doctor: If both parents have O blood type, their child would have only O blood type as well.The O blood type is a recessive tr ait and therefore a parent with a O blood type could only pass on the O gene to their child. If both parents are O blood type then, both parents would pass on the O gene to the child.I hope I cleared your doubt.