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: TTS
13 What are the Parent 1 gametes? (HINT, FOIL. There will be 4 genotypes)
14 What percent of offspring can curl tongue and have straight hair?
15 What percent of offspring cannot curl tongue and have curly hair?