Eye color in drosophila is an X-linked trait much like colorblindness in humans. Red eyes are dominant to white eyes. If a female drosophila, who is heterozygous for red eyes, crosses with a male drosophila, who has red eyes, What can you predict of the progeny produced?
1) All progeny will have red eyes
2) All progeny will have white eyes
3) Half of the progeny will have red eyes and half will have white eyes
4) The eye color of the progeny cannot be determined