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Dermatoglyphic Investigations in Twins and Siblings

Published online by Cambridge University Press:  01 August 2014

C. C. Plato ,
J. T. Schwartz  and
W. Wertelecki
C. C. Plato*
Affiliation:
National Institute on Aging, Gerontology Research Center, National Institutes of Health, Baltimore, Maryland, USA
J. T. Schwartz
Affiliation:
Office of Biometry and Epidemiology, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
W. Wertelecki
Affiliation:
Department of Medical Genetics, University of South Alabama College of Medicine, Mobile, Alabama, USA
*
Gerontology Research Center, NIA, NIH, Baltimore City Hospitals, Baltimore, Maryland 21224, USA

Abstract

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The present report describes the preliminary results of an extensive dermatoglyphic investigation among 491 pairs of MZ and DZ twins, and sibs of both sexes. Paired homolateral comparisons were performed for the determination of the degree of discordance for each dermatoglyphic trait and the results were presented in a series of histograms. Some of the outstanding points brought forth by this study are: (1) different dermatoglyphic traits at different digits or palmar areas have different degrees of discordance; (2) in MZ twins the frequency of discordance for each trait is constant regardless of sex or laterality, whereas in DZ twins and sibs both sex and lateral differences are observed; (3) the higher number of significant differences in concordance between the MZ twins vs. sibs than between MZ vs. DZ twins suggests that, at least in the female, the dermatoglyphics may be affected by changing intrauterine environments.

Type
5. Twin Studies in Human Genetics
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 25 , Issue 1 , January 1976 , pp. 167 - 173
Copyright
Copyright © The International Society for Twin Studies 1976

References

REFERENCES

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