If R = red and r - white, what would be the result of a cross between a
heterozygous female (red-eyed with one
recessive allele) and a recessive male?
Hint: Draw a Punnet square,
A. 25% red-eyed female, 25% white-eyed female, 25% red-
eyed male, 25% white-eyed male
B. 25% white eyed male, 25% red-eyed male, 50% and red-
eyed female offspring
C. 0% chance of white-eyed flies