问：Ｘ连锁遗传性疾病有哪些特点？答：突变、缺失而失活的基因位于Ｘ染色体上，影响子代相应功能者，称为Ｘ连锁遗传性疾病。特点是男性患病；而女性因有两个Ｘ，其中有活性的正常Ｘ起代偿作用，故不患病，成为带病者。按Ｌｙｏｎｓ假设原理，女性带病者失活和正常的Ｘ随... Q: What are the characteristics of X-linked genetic disease? A: Mutations, deletions and inactivation of genes located on the X chromosome affect the corresponding function of offspring, known as X-linked genetic disease. Characteristics of men suffering from illness; and women because there are two X, of which the active normal X from the compensatory role, it does not get sick, become sick. According to Lyons hypothetical principle, female sick with inactivation and normal X ...