ABILITY TO ROLL TONGUE AS A DISCONTINUOUS VARIATION IN ALIKO DANGOTE UNIVERSITY OF SCIENCE AND TECHNOLOGY WUDIL STUDENTS

ABSTRACT Genetic variation in humans is shaped by several factors, including selection, migration, gene flow, and genetic drift. The tongue is a highly muscular organ involved in deglutition, taste, and speech. Its motor innervation is primarily through the hypoglossal nerve, except for the palatoglossus, which is innervated by the pharyngeal plexus.The ability to roll the tongue is a fascinating genetic trait that has intrigued scientists and researchers for decades. This trait, often described as a simple Mendelian characteristic, is believed to be influenced by a dominant gene. Individuals who can roll their tongues are often classified as "rollers," while those who cannot are termed "non-rollers." The study of tongue rolling provides valuable insights into genetic inheritance, population genetics, and human diversity.An observational assessment was conducted, where participants demonstrated their ability to roll their tongues. Each student was given one minute to attempt tongue rolling, and observers documented the results based on a predetermined criterion (e.g., complete roll, partial roll, no roll).The findings of this study indicate a relatively high prevalence of tongue rolling ability among the students of AlikoDangote University of Science and Technology Wudil, with 73.25% of the participants able to roll their tongues.Given the observed decline in tongue rolling ability with increasing age, a longitudinal study tracking the same cohort of participants over time would provide valuable insights into the dynamic nature of this genetic trait.