According to the Standord University School of Medicine, the rarest blood type is AB Rh Negative, with only .6% of the United States having this type. That is roughly 1 out of every 167 people. However, some suggest an ultra-rare type known as "Bombay Blood." There have only been a handful of reported cases of humans known to have this blood type. This could be the result of a slight mutation, though. Stanford - http://bloodcenter.stanford.edu/about_blood/blood_types.html "Bombay Blood" - http://www.everything2.com/index.pl?node=blood%20type Hope this Helps!
AB-negative is most rarely found.
The world's rarest fern is likely to be the small, unassuming plant known as the Huperzia polydactyla. This fern is considered critically endangered and is only found in a few locations in New Zealand.
Individuals with AB blood type can belong to any ethnic group. Blood type is not determined by ethnicity but rather by genetics. AB blood type individuals can be found in all populations around the world.
which blood group can be donate to all other groups? "O" positive blood group. it's called universal donor.
Their children can have blood groups A or O.
o negative
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.
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.
Every country has a different blood grouping system.The rarest blood type in the world is by far considered AB negative. This has supposibly been caused due to it not expressing the H antigen on the red blood cells.
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.
No it isn't. The rarest is AB negative.
It really does depend on the population in the U.S. but it has been stated that the rarest blood type is AB-. This is according to the American Red Cross
The rarest common blood type is AB negative. However, there have been some rare blood types discovered which fall out of the A/B Antigen, Rh +/- system normally used to distinguish blood types. O negative is not the rarest blood type, although it is frequently the most sought-after by blood banks, such as the Red Cross, because it can be given to virtually anyone.
O positive is the most common blood type. O negative is the rarest donor because it is the rarest type of blood and is often referred to as the "universal donor."