In Countdown #50, Jimmy Olsen interviews an incarcerated Joker about the murder of Duela Dent, who had called herself the Joker's Daughter. The Joker states that he never had any daughter, and expresses awareness of the Multiverse's existence and of shifts in reality. The Joker appears as he did before Batman #655.
All blood is made of the same basic elements, however not all blood is alike. There are eight common blood types. In an emergency, blood type O- can be given to anyone because it is most likely to be accepted by all blood types. O- is the Universal Donor. Type A+ can donate to A+, AB+. Type A- can donate to A-, A+, AB+, AB-.
If you have O+ blood you can donate to anyone who is also Rh + . You can donate to A+ , B+, AB+ and other O+ people.You can't donate whole blood to someone that is O-, because they lack the D antigen, and you have the D antigen on the surface of your red blood cells.ike An O+ donor can give to A+, B+, or AB+, as long as the type, screen, and crossmatch is compatible. If in EXTREME emergencies, you can give O-blood to anyone, but ONLY O-because it lacks any red blood cell surface antigen,and therefore won't cause a hemolytic transfusion reaction. O-people are universal donors.