★ Sickle Cell Disease Quiz
The ability to curl your tongue up on the sides is dominant to not being able to roll your tongue. A woman who can roll her tongue marries a man who cannot. Their first child has his father’s phenotype. What are the genotypes of the mother, father, and child (in that order)?
A. TT, Tt, tt
B. Tt, tt, tt
C. Tt, Tt, TT
D. tt, Tt, Tt
Select your answer:
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