In South Africa, the most frequent blood type is O+, while the rarest is AB-.
Types of blood
Although all blood has the same basic ingredients, not all blood is the same. In actuality, there are eight main common blood types, which are determined by the presence or lack of particular antigens, which are chemicals that, if foreign to the body, might activate an immune response.
Everyone is a member of one of eight blood groups. These blood types are sub-types of the four major ABO blood groups – A, B, AB, or O. The Rhesus (Rh) system splits these four groups further into Rh+ and Rh-, leaving eight blood types: O-, O+, B-, B+, A-, A+, AB- or AB+.
What is the most ancient blood type?
Type A appears to be the ‘oldest’ blood type in molecular history, in the sense that the mutations that gave rise to types O and B appear to have originated from it. This is referred to as the wild-type or ancestral allele by geneticists.
Is it possible for your blood type to change?
Typically, you will have the same blood type your entire life. However, blood types have shifted in rare situations. This has occurred as a result of rare conditions, such as receiving a bone marrow transplant or contracting specific malignancies or infections.
Which blood type is most desired?
Because O negative red cells are harmless for everyone, they are known as the universal blood type.
