Blood Types

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Although everyone's blood looks the same, it isn't identical. Different people have what is known as different blood types. Blood typing refers to the presence or absence of specific substances on the surface of red blood cells. There are four major blood groups these are:
A, B, AB, and O.

Below are diagrams of how we can imagine the red blood cells in the different types may look.

Type A
Type B
Type AB
Type O

Information was taken from
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