title: [Data on the genetic aspects of hair on the middle phalanx of the fingers].
abstract: Authors studied the frequency, degree of inheritance of the interdigital hair and its significance in investigation of cases of discussed paternity. Examinations were carried out as a part of the twin-research organized by the Department of Anthropology of the Lorand Eötvös University. 176 adult pairs of twins (86 male and 90 female) were examined. Serological findings show that 103 of them were monozygotes (MZ) and 73 dizygotes (DZ). The frequency of presence or absence of the interdigital hair in men and in families with legally determined fathers were in accordance with findings characterizing the Hungarian and Europid populations. In dizygotic females absence of the interdigital hair was extremely seldom. Among the MZ male pairs of twins discordant cases consisted of 3,8 per cent, among the DZ male twins 32,4 per cent. Among the MZ female pairs of twins 11,6 per cent, and among the DZ twins 23,1 per cent appeared to be discordant. The degree of inheritance was counted using the Holzinger's formula. The value of H in females were 0,49 in males 0,88, the average 0,72. Examination of the interdigital hair may be a valuable tool for determination of the origin of a person.
mesh_terms: D005260:Female; D005385:Fingers / Q000033:anatomy & histology*; D005826:Genetics, Medical; D006197:Hair / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D010334:Paternity; D011247:Pregnancy; D014427:Twins
vernacular_title: Adatok az ujjközépszörzet genetikájához.