During a windstorm, a tree falls on the population of wildflowers shown in the figure below. Most of the flowers die (as indicated by the tombstones in the second row). The survivors go on to reproduce.
What will the next generation of this wildflower population look like?

Question

During a windstorm, a tree falls on the population of wildflowers shown in the figure below. Most of the flowers die (as indicated by the tombstones in the second row). The survivors go on to reproduce. 
What will the next generation of this wildflower population look like?

Quizplus · Accepted Answer

Since the gray flower color is dominant, the survivors must have been heterozygous (Gg) for flower color. The offspring of these survivors will have a 3:1 ratio of gray (GG or Gg) to white (gg) flowers, resulting in three quarters of the flowers being gray and one quarter being white.

During a Windstorm, a Tree Falls on the Population of Wildflowers