Rh- blood in black Americans

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In black Americans, the percentage of those with partial D and true Rh negatives may be around the same

The reason:

90% of Africans categorised as Rh- are actually partial D.

Since European percentages of Rh- blood are significantly higher, the percentage difference in ancestry evens it out.

Of course, it depends on the African tribes responsible for ancestries.

The claim that around 5 percent of black Americans are Rh- could be true.

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