Why Do Humans Have Different Blood Types?

Humans have different blood types because of the way their bodies are built. Blood type is like a special code that lives in your red blood cells. Some people have an A code, others have a B code, and some have both or neither. This code can even change based on what kind of family you come from, just like how traits pass from parents to kids.

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Examples

  1. A person with type A blood can receive a donation from someone with type A or O blood.
  2. If both parents have type B blood, their child might have type B or O blood.
  3. Type AB is the universal recipient, meaning they can accept blood from any other type.

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Categories: Biology · blood· genetics· biology· types· donation