The disease is prevalent across some parts of Africa, the Middle East and India, which is due to the way in which the heterozygous form of the condition offers carriers a degree of protection against malaria, which is present in these areas. As a result, there is also a significant incidence of the disease in African-Americans, as a direct result of their African heritage, which means that the condition is significantly important for practitioners across the U.S. To understand. References

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Appendix 1

Map to show the regions of the world in which the sickle cell gene is most commonly found.…