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How can humans have 1 of 4 different blood types?​

User MicFin
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1 Answer

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Answer:

Blood type is an example of multiple alleles. That means there are more than 2 genes for a particular trait.

Explanation: A person can inherit:

AA or AO and be type A blood

BB or BO and be type B blood

AB and be type AB blood

OO and be type O blood

User Anton Matyulkov
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