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Results 1 - 1 of 1 for "Malaria," resistance to
  1. How are gene variants involved in evolution?: MedlinePlus Genetics 
    ... having only one copy provides some resistance to malaria. This disease resistance helps explain why the variants that cause sickle cell disease are still found in many populations, especially in areas where malaria is prevalent. Learn how to cite this page
    https://medlineplus.gov/.../mutationsanddisorders/evolution - Genetics