the students performed a second cross. the parental cross was between flies that are true-breeding for gray bodies and long wings and flies that are true-breeding for ebony bodies and curly wings. they crossed pairs of f1 flies and determined the phenotypes of the resulting f2 flies. the students found an approximate 3:1 ratio of flies with the dominant phenotype (gray bodies and long wings) to a fly with the recessive phenotype (ebony bodies and curly wings). only a few of the flies expressed the dominant phenotype of one trait and the recessive phenotype of the other trait. if an ebony body and long wing fly were mated with a gray body long winged fly, what are the chances that the offspring would be