TONGUE ROLLING

 

TONGUE ROLLING

Tongue rolling is the ability to roll the lateral edges of the tongue upwards into a tube. The tongue's intrinsic muscles allow some people to form their tongues into specific shapes. It comprises of rolling, folding, rotating, adjusting, and turning of the tongue.

Rolling the tongue into a tube shape is a dominant trait.

The tongue rolling ability occurs due to the influence of a dominant allele of the gene. A person who has either one or two copies of the dominant allele will be able to twist their tongue.

In the case that a person is born with two recessive alleles, they cannot twist their tongue.

 In most cases, parents with a twisting-tongue ability can give birth to non-tongue twisters, and vice versa.