Question

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
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?

Answer 1

should be this. you can’t have any of these listed below since they both rain recessive traits. recessive traits aren’t able to be created in the dihybrid. btw i did the simplified grid since they produce the same gametes. i could be wrong though (: