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Twin study of digital dermatoglyphic traits: Investigation of heritability
Author(s) -
Arrieta M. I.,
Salazar L.,
Criado B.,
Martinez B.,
Lostao C. M.
Publication year - 1991
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.1310030104
Subject(s) - heritability , dermatoglyphics , biology , arch , dizygotic twins , orthodontics , anatomy , genetics , medicine , geography , archaeology , obstetrics
Digital patterns of a sample of monozygotic and dizygotic twins were analyzed to obtain heritability values for the four basic types of patterns: arch, tented arch, loops, and whorls. Loops have been separated according to their orientation radial or ulnar. To carry out this study, we used the Holzinger and Clark indices. The results show highest concordances for monozygotic twins except for ulnar loops of the left hand and radial ones of the right hand. Different values of heritability were found for the right and left hands, with finger I having the highest values.