Tongue-rolling phenotypes and geographical variation in the United Kingdom.
The distribution of tongue-rolling phenotypes in a sample (n = 477) of undergraduate students of the University College of Swansea (U.K.) was studied. The birthplaces of these students were also recorded. England was divided into six areas, and Wales was left as an area on its own. The data suggest that those students who come from north-east are more non-rollers, which may be due to mixture with Scandinavians.
Azimi-Garakani
C
C
Department of Medical Biochemistry and Genetics, Tehran University of Medical Sciences, Iran.
Beardmore
J A
JA
D000328:Adult; D004739:England; D005787:Gene Frequency; D005828:Genetics, Population; D006801:Humans; D010641:Phenotype; D014059:Tongue / Q000033:anatomy & histology*; D014061:Tongue Habits; D014852:Wales