Question

Can YOU curl your tongue up on the sides?

Scientists Debunk Familiar Tongue-Rolling Lore | HuffPost Impact

We are pretending that tongue-curling in humans is a dominant genetic trait.

Suppose a man who is Tt for tongue-curling marries a woman who is also Tt for this trait. What are the possible genotypes and phenotypes of their children, and the percent chance for each?

Genotype Phenotype (curl or no curl) Percent Chance (number only)
TT
Tt
tt
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Answer 1

Genotype Phenotype (curl or no curl) Percent Chance (number only)
TT Curl 25%
Tt Curl 50%
tt No curl 25%