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-.
1 Group O-is the universal donor, but a person with O-blood type can only receive this type. 2  Group A+ can donate red blood cells to A+ and AB+ recipients. 3  Group A-can donate red blood cells to A+ or A-and to AB+ or AB-recipients.4  Group B+ can donate red blood cells to B+ and AB+ recipients.lood types are inherited. The four major blood groups are O, A, B and AB. They are also positive or negative (the Rh factor), creating eight major blood types. Your type is determined by the presence or absence of antigens on the surface of your red blood cells.