How Rare Is Rh Null Blood Type?
Rhnull Phenotype Is a Rare Blood Group with a Frequency of Approximately 1 in 6 Million Individuals, Transmitted via an Autosomal Recessive Mode. It Is...
Rhnull phenotype is a rare blood group with a frequency of approximately 1 in 6 million individuals, transmitted via an autosomal recessive mode. It is characterized by the weak (Rhmod) or lack (Rhnull) of expression of all Rh antigens on the red cells.
How many people have Rh null blood?
This blood type is so rare that only 43 people on Earth have ever been reported to have it, and there are only nine active donors. Until 1961, doctors assumed a person lacking all Rh antigens would never even make it out of the womb alive.
What race has Rh null blood?
People with this blood type have a complete absence of any of the Rh antigens. It was first discovered in an Aboriginal Australian and is extremely rare, with fewer than 50 individuals known to have Rhnull blood in the 50 years after its discovery.