Which of the following is an example of incomplete dominance? a. in a cross between tall plants and short plants, half the offspring are tall and half the offspring are short. b. a cross between a black mouse and a white mouse produces a gray mouse. c. a cross between a white cow and a red bull produces a calf with white hairs and red hairs. d. a blue-eyed child has one blue-eyed parent and one brown-eyed parent.