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O blood group
AB Negetive
O neg is the second rarest blood group (AB neg is the rarest). It is more valuable than rare, as it is a universal donor.
o negative
a pos. sue gray
There are 30 human blood group systems that are recognised. In the commonly used ABO and Rh system the blood type AB- is the least common with never more than 1% of the population of a country having this type of blood.
If X is the set of all blood groups of human beings and Y is the set of all human beings then the association that associates a blood group to a person having that blood group is not a function from X to Y .
No it isn't. The rarest is AB negative.
The rarest type of blood is O. people with O type blood can donate blood to anybody and there are very few people that have this blood type. It is extremely rare.
AB+ is the third rarest blood type. 1 person in 29 has AB+ which is 3.4% percent of the population.
AB negative is the rarest blood type. AB positive is the second rarest blood type. The negative blood types are more rare than the positive. The common blood type is o.
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