Answer: Derek is TT and his wife Ashley tt. Thus children are Tt
Explanation: T Is dominant and t is recessive.
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?
learn more about traits below,
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