A Hungarian twin study on hand clasping, arm folding and tongue curling.
A twin study was performed in adult Hungarian monozygotic and dizygotic pairs for hand clasping, arm folding and tongue curling. Genetic background of these traits could not be confirmed, although there appears to be a positive correlation between hand clasping type and handedness.
D000328:Adult; D001132:Arm; D005260:Female; D007839:Functional Laterality; D005824:Genetics, Behavioral; D006225:Hand; D006801:Humans; D008297:Male; D010641:Phenotype; D011247:Pregnancy; D014061:Tongue Habits; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic