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The sickle-cell gene is most common in those of African descent. It is curious that a gene which has the potential to be so detrimental to an organism would be so relatively common; not decreasing in frequency through the generations as scientists would expect. Research supports the theory that more people of African descent carry the sickle-cell gene because it decreases the carrier's susceptibility to malaria. In places where malaria is a bigger problem, we find a higher frequency of the sickle-cell gene, thus Africans tend to be more resistant to malaria. While scientists have in no way put this matter to rest, the data is very interesting.

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17y ago

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