Question

In peas, Tall (T) is dominant over dwarf (t), Yellow is dominant over green (y), and Smooth (S) is dominant over wrinkled (s). What fraction of the offspring in the following cross would be homozygous recessive for all gene pairs in the cross: YyTtss x YyttSs?

Answer 1

hope it helps--------

Answer 2

1.Gametes formed by YyTtss will be YTs,Yts,yTs and yts.
2.Gametes formed by YyttSs will be YtS,Yts,ytS and yts.
After union of these gametes, the homozygous recessive offspring for all three traits yyttss will be 1 out 16.Hope it helps.
Surity of correct answer is 100%.Thanks for the question of my subject Genetics.