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Segregation analyses of the index fingerprint
Author(s) -
Iagolnitzer E. R.,
Darlu P.
Publication year - 1988
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330770214
Subject(s) - penetrance , ridge , mendelian inheritance , major gene , trait , fingerprint (computing) , biology , genetics , arch , index (typography) , evolutionary biology , gene , geography , paleontology , artificial intelligence , computer science , archaeology , world wide web , programming language , phenotype
Segregation analyses have been performed on both the ridge count and the pattern type (arch vs. nonarch) of the index fingerprints in a sample of 422 families. These analyses suggest a dominant autosomal major gene for arch and a recessive autosomal gene for low ridge count on the index finger. In both cases, multifactorial inheritance has to be taken into account. However, by testing different hypotheses, it turns out that the penetrance of arch trait is low (70%), and that the transmission parameters of the ridge count trait, although they are significant, diverge from the expected Mendelian values.