Singed bristles (sn), crossveinless wings (cv), and vermillion eye color (v) are due to recessive mutant alleles of three x-linked genes in Drosophila melanogaster. When female heterozygous for each of the three genes was testcrossed with a singed, crossveinless, vermillion male, the following progeny were obtained:

Class           Phenotypes                                              Number

1.                 singed, crossveinless, vermilion             3

2. Crossveinless, vermilion    392

3.                  Vermilio                                                     34

4.    Crossveinless 61

5.                   singed, crossveinless                             32

6.                   singed, vermilion                                     65

7.                   singed                                                      410

8.                   wild-type                                                       3

                                                                               Total: 1000

1. Determined the order of these genes

2. Calculate the ,ap distances between the genes

3. Determine the coefficient of coincidence and the interference among these genes

Answer rating: 100% (QA)

the solution of this problem is attached 1 Genotype Observed Type of gamete singed crossveinless vermilion sn cv v 3 double crossover Crossveinless ve... View the full answer