Espinheira R, Geada H, Mendonça J, Reys L
Institute of Legal Medicine, Lisbon, Portugal.
Hum Hered. 1988;38(6):372-4. doi: 10.1159/000153817.
In a Portuguese family, a null allele was found in the Pi system. An apparent 'exclusion' of the mother was found to be due to the presence of null alleles in mother and child. A transferrin (Tf) null allele was found in a case of disputed paternity. The mother and putative father were heterozygous for Tf null alleles and the child was homozygous (TfQ0) and presented hypotransferrinemia.
在一个葡萄牙家庭中，在Pi系统中发现了一个无效等位基因。发现对母亲的明显“排除”是由于母亲和孩子中均存在无效等位基因。在一例亲权纠纷案件中发现了一个转铁蛋白（Tf）无效等位基因。母亲和推定父亲均为Tf无效等位基因的杂合子，而孩子为纯合子（TfQ0）并表现出转铁蛋白血症。
