For generations, students have been misled into thinking that the ability to perform the seemingly trivial party trick of tongue-rolling is determined by a single gene. This misconception originated from geneticist Alfred Sturtevant’s studies in the 1940s and has been perpetuated in biology classrooms for decades.
However, thanks to the rise of the Internet, the truth has emerged. Sturtevant’s theory was actually debunked in the 1950s through research on monozygotic twins. More recent studies even suggest that with enough practice, anyone can learn to roll their tongue.
Ultimately, the takeaway might be that few individuals actually take the time to attempt this skill.
This article, written by Ruby Pearce from York, addresses the query: “Is tongue rolling actually genetic?”
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Source: www.sciencefocus.com