In Mice the Allele for Colored Fur (C) Is Dominant

Essay

In mice the allele for colored fur (C) is dominant to the allele for albinism (c).The allele for normal behavior (W) is dominant to that for waltzing movement (w).Give the probable genotypes of the parents if they produced the offspring listed after the following crosses:
(a)
colored normal * white waltzer produced 10 colored normal, 8 colored waltzers, 2 white waltzers, 11 white normal
(b)
colored normal * white normal produced 35 colored normal, 13 colored waltzers
(c)
colored normal * colored normal produced 37 colored normal, 14 colored waltzers, 9 white normal, and 5 white waltzers