Abstract

PREVALENCE OF TONGUE ROLLING AMONGST STUDENTS POPULATION IN PORT HARCOURT METROPOLIS

*Victor P. D., Fawehinmi H. B., Jaja B. N., Gbaranor K. B., Okpara P. E., Clinton D. Orupabo and Ajie P. C.

Abstract

Genetic variation in humans is influenced by several factors which include: selection, migration, gene flow and genetic drift (Bhasin et al., 1992). Some authors have reported that the percentage of people who can roll their tongue ranges from sixty-five (65) to eighty-one (81) percent (%), it is slightly higher in females than in males (Sturtevant 1940, Liu and Hsu 1949, Komai 1951, Lee 1955). Sturtevant (1940) reported that some persons cannot roll their tongue when first asked but later learn to do so especially children.

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