Chapter 2, Problem 26P

In the fruit fly Drosophila, a rudimentary wing called “vestigial” and dark body color called “ebony” are inher-ited as independently assorting genes and are recessive to their dominant counterparts full wing and gray body color. Dihybrid dominant-phenotype males and females are crossed, and 3200 progeny are produced. How many progeny flies are expected to be found in each phenotypic class?