Human birth weight has undergone stabilizing selection. Babies of low weight lose heat more quickly and get ill from infectious diseases more easily whereas babies of large body weight are more difficult to deliver through pelvis. Infants of a more medium weight have the greatest survival. What type of selection does this demonstrate

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?