In Drosphila, gray body color is dominant over ebony body color, while long wings are dominant over vestigial?

Question

wings. Work the following crosses though the F2 generation, and determine the genotypic and phenotypic ratios for each generation. Assume that the P1 individuals are homozygous:
(1) gray, long X ebony, vestigial
(2) gray, vestigial X ebony, long
(3) gray, long X gray, vesitigial

Answer 1

Key: G = gray, g = ebony; L = long wings, l = vestigial

1. Parents = GGLL x ggll
gametes = GL GL GL GL x gl gl gl gl
F1 = all GgLl Phenotypes: all gray, long
gametes from F1 = GL Gl gL gl x GL Gl gL gl
F2 = (genotypes will be on the Punnett square) Phenotype ratio: 9 gray, long: 3 gray, vestigial: 3 ebony, vestigial: 1 ebony,vestigial

You can do the rest in the same manner.

Answer 2

This is a homework question?
Review your text for Punnett Squares.