Blood Types
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In addition to the a and b antigens there is a protein called the rh factor which can be either present or absent creating the 8 most common blood types a a b b o o ab ab.
Learn more about the different types of blood including which one is the rarest and the role of genetics in determining your blood type.
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Blood types. Human blood is grouped into four types. There are eight main blood types organised through two combined systems. For example by percentage of population the most common blood type in australia is o positive and the least common is ab negative. The positive and negative refers to your rh type once called rhesus.
A positive a negative b positive b negative ab positive ab negative o positive and o negative. For example the surface of red blood cells in type a blood has antigens known as a antigens. A b ab and oeach letter refers to a kind of antigen or protein on the surface of red blood cells. Blood types are determined by the presence or absence of particular antigens on the surface of red blood cells.
Your blood type is a combination of these two systems. These antigens may be proteins carbohydrates glycoproteins or glycolipids depending on the blood group systemsome of these antigens are also present on the surface of other types of cells of. Blood is a lot more complex than it looks. There are eight main blood types.
In addition to abo and rh there are 34 other recognised blood types called. A blood type also known as a blood group is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells rbcs.