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

It is world's most rare blood type, known as the golden or Rh-null blood type. Rh antigens in the red blood cells is what ...

Cells of Rh-negative grandmothers could have no effect on the immunologic response of their Rh-negative daughters to Rh-positive blood ... that neonatal exposure to antigen caused a change ...