What is the difference between blood group O neg and O rh neg?
How do blood types differ, and what is the difference between O positive and O negative?
What does having an "O" blood type mean? Why do blood type O and B have a high compatibility? Why is O-negative the rarest blood type? What blood type is O1 compatible with? Why are there different blood types? Why do humans have different blood types? Why can certain types not be mixed? What are the compatibility of blood types? Does the O positive blood group have antibodies? Can a man with blood group O negative and a woman with O positive give birth? My parents are from an A positive and O negative blood group. How does this affect my blood? If a father with an O blood type and a mother with a B+ blood type, what will be the child’s blood type? What is your blood type? My mother's blood type is AB positive and my father is B positive. My blood type is O positive. How is this possible? What is the disadvantage of the B negative blood group? Why is O the most common blood type in humans even though it is a recessive trait? What is the difference between O- and O+? What are the different human blood groups and types? Why do masquitos prefer A,B negative blood over o positive blood? Can blood group changes from O+ to O- ? It happens with me and don't know how . What is the difference between animal blood and human blood? Why do we have different blood types, with some being compatible and others incompatible? Is it possible for a child to have a O- blood type when the parents are both A+? What are the different blood groups? My blood group is B positive and my husband's blood group is O positive. How is my child B negative? What is blood cross matching? Specify different types? When parents are both blood group b positive then what is child's blood group? Can a child have blood group A positive when the father and mother are B positive and O positive respectively? What are the types of blood testings? O+ Blood Is Very Common In India Should I Donate Blood? What is the true colour of human blood? It appears red because of Oxygen. What is its colour without O2?