In mice, the gene (C) for colored fur is dominate over its allele (c) for white. The gene (N) for normal behavior is dominant over (n) for waltzing. Pairs of mice were mated, and the following results obtained. In each case, give the probable genotypes of the parents

a) colored, normal mated with white, normal produced colored normal, and 10 colored waltzers.
b) colored normal mated with colored normal produces 38 colored normal, 15 colored waltzers, 11 white normal, and 4 white waltzers
c) colored normal mated with white waltzer produced 8 colored normal, 7 colored waltzers, 9 white normal and 6 white waltzers.