In D. virilise, the mutations dusky body (dy), cut wings (ct) and white eyes (w) are all recessive alleles located on at different places on the x chromosome. Females heterozygous for all three mutations were crossed to dy ct w males, and the following phenotypes were obtained

Class Phenotype Number
1 Wild type 18
2 Dusky 153
3 cut 6
4 White 76
5 cut, white 150
6 dusky,cut 72
7 dusky,cut,white 22
8 dusky,white 3

(i) What are the genotypes of the two maternal X chromosomes?
(ii) What is the map order of the genes on the X chromosome?
(iii) What are the two-factor recombination frequencies between each pair of genes?
(iv) Are there as many observed double-crossover gametes as you would expect if there was no interference?
(v) What is the coefficient of coincidence and interference in this region?

Insufficient data. Copy and paste will not work here. Repost with adequate data and a clear question.