Question

which disease did west african genetic immunity help resist?

tuberculosis

smallpox

malaria

typhoid

Explanation:

West African populations have genetic traits that help resist malaria. For example, the sickle - cell trait (heterozygous for the sickle - cell allele) provides some protection against malaria. Malaria is a mosquito - borne disease caused by Plasmodium parasites. In regions where malaria is endemic (like parts of West Africa), such genetic adaptations have evolved. Tuberculosis is caused by Mycobacterium tuberculosis and is more related to factors like poor living conditions and immune system status in general. Smallpox is a viral disease that was eradicated mainly through vaccination. Typhoid is caused by Salmonella typhi and is related to contaminated water and food.

Answer:

Malaria