In pea plants, purple flower color is dominant to white flower color. If two pea plants that are true-breeding for white 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 whitec. half of the flowers will be purple and half will be whited. one-quarter of the flowers will be purple and three-quarters will be whitee. all of the flowers will be white