Question

Can you curl your tongue? Tongue-curling in humans (T) is a dominant genetic trait. Derek can curl his tongue but his wife, Ashley, cannot. All nine of their children can curl their tongues. Complete the Punnett square based on the genotypes they most likely have.

Answer 1

Answer: Derek is TT and his wife Ashley tt. Thus children are Tt

Explanation: T Is dominant and t is recessive.

Answer 2

Derek can curl his tongue but his wife, Ashley, cannot. All nine of their children can curl their tongues. Because, the trait of Derek is TT and the trait of his wife Ashley tt.

Thus, the trait of children are Tt

Why Derek cannot curl his tongue?

• 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.

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