Non-Europeans, especially those of African descent, struggle to find bone marrow transplant matches due to limited diversity in the registry. This lesson explores the impact of genetic diversity on donor compatibility and the historical underrepresentation of certain racial groups in medical research. Gain an understanding of how genetics, race, and ethics intersect in medical science and societal issues. This teaching guide forms part of the Intro to Cancer: Leukemia & Hina's Story pathway.