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Variability of postnatal ossification timing and evidence for a “dosage” effect
Author(s) -
Garn Stanley M.,
McCreery Lawrence D.
Publication year - 1970
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.1330320116
Subject(s) - sister , ossification , brother , linkage (software) , biology , genetics , anatomy , gene , sociology , anthropology
Although absolute variability in postnatal ossification timing is generally larger in boys than in girls, relative, conception‐corrected variability is significantly larger in girls, suggestive of a “dosage” effect and consistent with the hypothesis of partial X‐linkage. These findings, together with the excess of sister‐sister over brother‐brother timing similarities are inconsistent with the hypothesis of selective inactivation of either the paternal or the maternal X chromosome.