Green eye color is autosomal recessive in Drosophila If pure

Green eye color is autosomal recessive in Drosophila. If purebreeding green eye fly is crossed to purebreeding wildtype fly, what is the phenotype of their progenies?

Solution

let the pure green eyes be \"gg\"

and pure breeding wild type be \"GG\"

crossing GG x gg

Gametes G G X g g

F1 Gg Gg

Penotype Wild types eyes

therefore the phenotype of the progenies would be wild type eyes.

as pure breeding implies homozygous condition.