Being able to curl your tongue is a recessive trait (t), while not being able to curl your tongue is a dominant trait (T). Having curly hair is also a recessive trait (s), while having straight hair is a dominant trait (S).
Parent 1 can curl their tongue (tt) and also has straight hair (Ss). Parent 2 cannot curl their tongue (TT) and has
curly hair (ss). In your notebook, perform a dihybrid cross for these traits. Parent 1: ttSs Parent 2: TTSS
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What are the Parent 1 gametes? (HINT: FOIL. There will be 4 genotypes)
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What percent of offspring can curl tongue and have straight hair?
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What percent of offspring cannot curl tongue and have curly hair?