Why do we have different blood types?

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I just went for a blood test and came back knowing I have type AB blood. However my blood can only be used by other people who share the same blood type with me but not others, while other people with type O, A, B they can share the blood with me. Why is that so?

In: Chemistry

8 Answers

Anonymous 0 Comments

Platelets are like puzzle pieces. Think of it like some puzzle pieces only have inverted dents, some only have protruding notches, some have a mixture of both, and some are the rare puzzle corner or side pieces. You need a blood type where the puzzle pieces (platelets) won’t fit together, but glide away from one another so that they don’t clot. That’s my best simple terms explanation. Hope that helps.

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