人类中有一种抗体如不能产生或减�会导致对病菌的抵抗力降低控制这种病的隐性基因位于x染色体上其隐性基因在亲子代之间的传递不可能是a父亲→ Template




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tomski人类中有一种抗体如不能产生或减�会导致对病菌的抵抗力降低控制这种病的隐性基因位于x染色体上其隐性基因在亲子代之间的传递不可能是a父亲→ coloring