You have two true-breeding lines of fruit flies. One is gray (eb+), red eyed (w+), and dwarf (d). The other is ebony (eb), white eyed (w), and normal size (d+). You cross the lines to produce F1 offspring, which you then use in a test cross. The following offspring are observed
phenotype # offspring
gray, red eyed, dwarf 206
ebony, white eyed, normal size 195
gray, white eyed, dwarf 135
ebony, red eyed, dwarf 36
ebony, white eyed, dwarf 39
ebony, red eyed, normal size 121
gray, white eyed, normal size 31
gray, red eyed, normal size 37

Construct a genetic map of the chromosomes including both the order of the loci and the bistance between them.