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Multivariate Analysis in Genetic Studies

Published online by Cambridge University Press:  01 August 2014

Ch. Susanne
Ch. Susanne*
Affiliation:
Department of Anthropology, University of Brussels, Belgium
*
105 A. Buyllaan, 1050 Brussels, Belgium

Summary

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The results are presented of a method of generalized distances calculated by a noncentral χ2 test and applied to compare 63 twin pairs and 196 sib pairs. The advantage of this method in biometrical analysis lies in the fact that several measurements can be utilised simultaneously. Besides, it takes into account the distance of each relative to the centre of the population and also has the advantage of permitting the comparison of distances between pairs of relatives whatever their age or sex.

Generalized distances were calculated for four measurements of the head, five of the body and eleven of the face. For all three sets of measurements the influence of genetical factors was demonstrated. The body seems less influenced by environmental factors and more conditioned by genetic ones.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 21 , Issue 3 , July 1972 , pp. 204 - 210
Copyright
Copyright © The International Society for Twin Studies 1972

References

REFERENCES

Defrise, E. 1967. Generalized distance in genetic studies. Acta Genet. (Basel), 17: 275–288.Google Scholar
Defrise, E. 1968. Non-central chi-square in twin studies. Acta Genet. (Basel), 18: 170–179.Google Scholar
Defrise, E. 1970. Multivariate analysis in twins. Acta Genet. Med. Gemellol., 19: 150–154.CrossRefGoogle Scholar