6、下图为一先天性聋哑家族的系谱,该病为AR,群体-|||-中携带者的频率为 1/50 ,(1)Ⅲ5和Ⅲ6为携-|||-带者的可能性是多少?②Ⅲ5和Ⅲ6的后代发病风险是多-|||-少?由此说明近亲婚配的危害。-|||-bigcirc square -|||-1 2-|||-1 2-|||-square bigcirc square 3 bigcirc 4 bigcirc 5 square -|||-square -|||-square 1 square 2 bigcirc 3 square 4 square 5 bigcirc 6-|||-1 bigcirc 2