Hostname: page-component-7479d7b7d-jwnkl Total loading time: 0 Render date: 2024-07-13T21:16:33.464Z Has data issue: false hasContentIssue false
  • English
  • Français

Ueber die Fähigkeit, die Zunge um die Längsachse zu rollen

Published online by Cambridge University Press:  01 August 2014

Friedrich Vogel
Friedrich Vogel*
Affiliation:
Max Planck-Institut für vergleichende Erbbiologie und Erbphathologie, Berlin-Dahlem

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Examinations of 92 monozygotic and 83 dizygotic twin pairs and 27 families with 78 children have given the result that the ability « tongue curling » is to a certain degree, but not exclusively hereditary. Furthermore, some people are able to learn it. Hence, it is not an unconditionally constant individual trait. By a somewhat more exact functional analysis it is shown that the alternative distribution in the population is counterfeinted only. Hence, there is no evidence for the monomere inheritance lati in Groningen e Drenthe (due supposed by some authors.

Sommario

SOMMARIO

Gli esami di 92 paia di gemelli monozigoti e di 83 dizigoti e di 27 famiglie con 78 bambini hanno dato il risultato che la caratteristica « ondulazione della lingua » è fino ad un certo punto ma non del tutto ereditaria.

Inoltre, alcune persone sono capaci di impararlo. Per conseguenza, essa non è incondizionatamente una caratteristica individuale costante.

Da una poco più esatta analisi funzionale è dimostrato che l'alternativa distribuzione nella popolazione è soltanto contraffatta.

Donde non v'è evidenza per eredità monomera supposta da alcuni autori.

Zusammenfassung

ZUSAMMENFASSUNG

Untersuchungen an 92 EZ und 83 ZZ sowie an 27 Familien mit 78 Kindern zeigen, dass die Fähigkeit, die Zunge um die Längsachse zu rollen, zwar bis zu einem gewissen Grade, aber nicht ausschliesslich von der Erbanlage abhängig ist. Ferner ist sie in manchen Fällen erlernbar, also kein unbedingt konstantes persönliches Merkmal, und durch etwas genauere funktionelle Analyse lässt sich zeigen, dass die alternative Verteilung in der Bevölkerung im Sinne eines entweder-oder nur vorgetäuscht ist. Mithin spricht nichts für den von einigen Autoren angenommenen monomeren Erbgang.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 6 , Issue 2 , April 1957 , pp. 225 - 230
Copyright
Copyright © The International Society for Twin Studies 1957

References

Literatur

1. Gahres, E. E.: Tongue rolling and tongue folding and other hereditary movements of the tongue. J. Hered. 43, 221–225 (1952).Google Scholar
2. Hsu, T.: Tongue upfolding, a newly reported heritable character in man. J. Hered. 39, 187–188 (1948).Google Scholar
3. Kloepfer, H. W.; An investigation of 171 possible linkage relationships in man. Ann. Eugen. 13, 35–71 (1947).Google Scholar
4. Liu, T. T. und Hsu, T.: Tongue-folding and tongue-rolling in a sample of the Chinese population. J. Hered. 40, 19–21 (1949).CrossRefGoogle Scholar
5. Matlock, P.: Identical twins discordant in tongue-rolling. J. Hered. 43, 24 (1952).Google Scholar
6. Möhr, J.: A study on linkage in man. Kopenhagen 1954.Google Scholar
7. Urbanowski, A. und Wilson, J.: Tongue curling. J. Hered. 38, 365–366 (1947).CrossRefGoogle Scholar
8. Sturtevant, A. H.: A new inherited character in man. Proc. Nat. Acad. Sci. U.S. 26, 100–102 (1940).CrossRefGoogle ScholarPubMed
9. Vogel, F.: Über die Erblichkeit des normalen Elektroencephalogramms. Vergleichende Untersuchungen an ein- und zweieiigen Zwillingen. (In Vorher.)Google Scholar
10. Vogel, F. und Wendt, G. G.: Zwillingsuntersuchung über die Erblichkeit einiger anthropologischer Masse und Konstitutionsindices. Z. menschl. Vererb, u. Konst. L. 33, 425–446 (1956).Google Scholar