Question

genetic resistance to allowed africans to work in rice fields. angola prince rivers stonehenge cotton gin sabotage bunce island malaria sierre leone christmas decorative baskets

Explanation:

Malaria is a disease transmitted by mosquitoes. In rice - growing areas (which are often wet and provide breeding grounds for mosquitoes), having genetic resistance to malaria would be a significant advantage for people working in such environments. Africans with genetic resistance to malaria could work in rice fields without being as severely affected by the disease compared to those without such resistance.

Answer:

malaria