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女,34岁。因婚后8年,自然流产6次,均于妊娠2月左右而来我院就诊。孕期无患病史,表型正常,无毒物接触史,夫妇体健,非近亲婚配。细胞遗传学检查:丈夫核型正常,患者核型为45XX,t(22q;22q)(见插页照片) 讨论 按照分离定律,22;22罗伯特易位携带者只能形成两种类型的配子,在受精后形成22三体或22单体的合子。Maeda等1976年曾对22; 22罗伯特易位携带者妊娠13周自然流产的胚胎组织进
Female, 34 years old. Due to 8 years after marriage, natural abortion 6 times, both in pregnancy about 2 months from our hospital. No history of pregnancy during pregnancy, phenotype normal, non-toxic contact history, the couple healthy, non-relatives of marriage. Cytogenetics: Her husband’s karyotype is normal and her karyotype is 45XX, t (22q; 22q) (see inset photo) Discussion According to the law of separation, 22; 22 Robert translocators can only form two types of gametes, Fertilization after the formation of trisomy 22 or 22 monomer zygote. Maeda et al. 1976 on 22; 22 Robert translocations of spontaneous abortions at 13 weeks gestation