Is this better this time lol

For a second there I thought it was a dog

a)  Parents Genotype should be (CC,Vv) and (cc,VV).

b) The genotypes of the parents are (Cc,Vv) and (Cc,Vv).

c) The genotypes of the parents are (Cc,Vv) and (cc,vv).

Explanation:

Mating has occured between a normal colored mice whose genotype is C_,V_  and normal white  mice with genotype cc,V_. The offsprings are as follows :

1) normal mice produced 29 colored

2) 10 colored, waltzing progeny.

Thus all offspring are normal. The genotype of the first parent should therefore be CC. Waltzing trait is produced. The V gene should therefore be heterozygous in both traits.

Hence The parent genotypes should be (CC,Vv) and (cc,CV).

In this case the approximate ratio in which the descendants are produced is 9:3:3:1. Hence genotypes of the parents are (Cc,Vv) and (Cc,Vv).

In this case the approximate ratio in which the offsprings are produced is 1:1:1. The genotypes of the parents are (Cc,Vv) and (cc,vv).