(Solved): In Drosophila melanogaster, black body (b) is recessive to gray body (b), purple eyes (pr) are r ...

In Drosophila melanogaster, black body $(b)$ is recessive to gray body $\left(b^{?}\right)$, purple eyes $(pr)$ are recessive to red eyes $\left(p^{?}\right)$, and vestigial wings $(vg)$ are recessive to normal wings $\left(v^{+}{}^{+}\right)$. The loci encoding these traits are linked, with the map distances shown in the image. The interference among these genes is 0.5 . A fly with a black body, purple eyes, and vestigial wings is crossed with a fly homozygous for a gray body, red eyes, and normal wings. The female progeny are then crossed with males that have a black body, purple eyes, and vestigial wings. If a total of 1000 progeny are examined, determine the expected number of offspring that result from each crossover event. single crossover between $vg$ and $pr$ : non-recombinants: Determine the expected genotypes that result from each crossover event.