in pea plants , green peas are a recessive trait and yellow peas are a dominant trait , how can two plants with yellow peas produce offspring with green peas

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?