A male fly with the whiteeye phenotype was crossed with a fe

A male fly with the white-eye phenotype was crossed with a female fly with red-eye phenotype. (Nomenclature: w+ is wildtype, w- is white eye allele, y represents the y chromosome) The following are numbers obtained, from the cross, for the phenotypes observed in the F1 generation: 99 males, red eye; 101 males, white eye; 99 females, red eye; 104 females, white eye Using this information what is the genotype of the P1 generation?

Solution

Ans:

Genotype                                        Number

wild-type (not paralyzed, red eyes) - 44

paralyzed, cinnabar eyes - 41

not paralyzed, cinnabar eyes- 7

paralyzed, red eyes- 8