In Drosophila, the X-linked recessive mutation vermillion (v)causes bright red eyes, in contrast to the brick-red eyes caused bythe wild-type allele. A separate autosomal recessive mutation,brown (bw), causes flies to have brown eyes. Flies with bothmutations have no eye pigmentation and are white-eyed. Determinethe F1 and F2 phenotypic ratios for each sex from the followingcrosses:
(a) vermillion females X brown males
(b) wild-type females X white-eyed males
