镰刀型细胞贫血症由基因突变引起其致病基因为隐性基因只有隐性纯合子才会�病携带者不�病且对疟疾的抵抗力高于正常人在非洲某些疟疾流行的 Template




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tomski镰刀型细胞贫血症由基因突变引起其致病基因为隐性基因只有隐性纯合子才会�病携带者不�病且对疟疾的抵抗力高于正常人在非洲某些疟疾流行的 coloring