Question

11. Refer to the partially completed Punnett square. Purple flowers (P) are dominant to white flowers (w). What do you predict about the flower color of the offspring resulting from this cross?

Answer 1

3 : 1

PP, Pw, Pw = purple flower

ww = white flower

Step-by-step explanation:

As purple flowers (P) are dominant to white flower(w), will make Punnett square for this cross.

P w

P PP Pw

w Pw ww

P is dominant to w, so offspring with either the PP or Pw genotype will have the purple-flower phenotype. The only offspring with the ww genotype will have the white-flower phenotype. Therefore, in this cross, three out of four (75 %) of the offspring would have purple flowers and one out of four (25 %) would have white flowers. These are the same percentages that Mendel got in his first experiment.