What Is Life? 2nd Edition by Jay Phelan

Exercise 15

In pea plants, purple flower color is dominant to white flower color. If two pea plants that are true-breeding for purple flowers are crossed, in the offspring:
A) all of the flowers will be purple.
B) three-quarters of the flowers will be purple and one-quarter will be white.
C) half of the flowers will be purple and one-quarter will be white.
D) one-quarter of the flowers will be purple and three-quarters will be white.
E) all of the flowers will be white.