It is designated as Rh-null by scientists. Blood consists of various molecules, including proteins or blood group antigens.

Another important antigen is the Rh factor, which gives the "positive" and "negative" signs to blood types. So, nowadays, knowing which of the eight possible combinations of blood group and Rh ...

If blood of Rh-positive grandmothers could induce ... that was produced on subsequent exposure to the antigen. When both the control group and the neonatally injected group were injected with ...

A person's blood type is determined ... or absence of two antigens, A and B, on the surface of red blood cells. Additionally, there is a protein called "the Rh factor," which can also be present ...

This molecule, now identified as the AnWj antigen, eventually led to the classification of the MAL blood group system after ... the ABO blood system and the Rh factor, human blood classification ...