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Why do we have different blood types? - BBC Science Focus Magazine

https://www.sciencefocus.com/the-human-body/why-do-we-have-different-blood-types/

sciencefocus.com

Why do we have different blood types? - BBC Science Focus Magazine

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Our Blood Types

Our Blood Types

Human beings have four major blood types, A, B, AB and O.

Blood cells, like all cells, are covered with molecules called ‘antigens', which depend on our genes. ...

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The Most Common Antigens

Identified by Dr Karl Landsteiner in 1901, the most common antigens are A and B, and a person with type O blood has neither of the antigens, while some have both of them (Type AB).

Another ...

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