Question

Two true-breeding varieties of garden peas are crossed. One parent had rex, axial flowers, and the other had white, terminal flowers. All F1 individuals had red, terminal flowers. If 100 F2 offspring were counted, how many of them would you expect to have red, axial flowers?

Answer 1

56

Step-by-step explanation:

F1 individuals are heterozygous. The F2 generation is a dihybrid cross and it will have offsprings in the ratio of 9:3:3:1. The dominant phenotypes are in the frequency of 9/16. Then the total number of the offsprings will be : (9/16)*100=56.25