What is the least common blood type?


What is the least common blood type?

AB Negative

A Negative

B Negative

O Positive

Less than 1% of people in the world have the AB Negative blood type; by comparison38% of people have the most common type, O Positive. An AB blood type presents itself when a child inherits both an A and B antigen from their parents and the two combine.

If their blood doesn’t have the Rh factor, that creates a negative blood type. AB Positive blood is slightly more common than AB Negative because the Rh factor is the dominant gene.

Answer: The correct answer is AB Negative

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