Palmar Intertriradial Ridge Counts in Sardinians
نویسندگان
چکیده
منابع مشابه
Directional and absolute asymmetry of digital ridge counts.
Distributions, correlations and weighted least squares estimates of the components of variation in right-left asymmetry for individual finger ridge counts have been obtained from 221 pairs of twins and 80 pairs of opposite sex siblings. Asymmetry has been measured by two indices: signed right-left difference representing unidirectional asymmetry and absolute difference, representing ambidirecti...
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Finger ridge count is a valuable quantitative phenotype used in a wide range of biological and anthropological research. However, the scoring of the phenotype is both labour intensive and error prone. This paper describe a freely available software program, RIDGECOUNTER, that can be used to obtain ridge counts from digitized prints (either collected using a digital fingerprint scanner or scanne...
متن کاملA genetical analysis of covariation between finger ridge counts.
1. The genetical and environmental structure of covariation between finger ridge counts in twin and sibling data has been analysed using the method of Martin and Eaves (1977) adapted from Jöreskog. 2. The model for environmental covariance contains a single factor loading on all ten digits but most environmental variance is specific to each finger. 3. For additive genetic variance there is one ...
متن کاملHeritability of Cardiovascular and Personality Traits in 6,148 Sardinians
In family studies, phenotypic similarities between relatives yield information on the overall contribution of genes to trait variation. Large samples are important for these family studies, especially when comparing heritability between subgroups such as young and old, or males and females. We recruited a cohort of 6,148 participants, aged 14-102 y, from four clustered towns in Sardinia. The co...
متن کاملAnalysis of the covariance structure of digital ridge counts in the offspring of monozygotic twins.
Improved methods for analysis of covariance structures now permit the rigorous testing of multivariate genetic hypotheses. Using Jöreskog's Lisrel IV computer program we have conducted a confirmatory factor analysis of dermal ridge counts on the individual fingers of 509 offspring of 107 monozygotic twin pairs. Prior to the initiation of the model-fitting procedure, the sex-adjusted ridge count...
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ژورنال
عنوان ژورنال: Advances in Anthropology
سال: 2015
ISSN: 2163-9353,2163-9361
DOI: 10.4236/aa.2015.53012