Problem:
Purebred lines of fruit flies with wild type (tan) body color and stubbly bristles are mated to flies with ebony bodies and normal bristles. The resulting F1 offspring all have normal wild-type body color and stubbly bristles. The F1 flies are crossed with flies recessive for both traits (i.e. ebony bodies and normal bristles).
Assume you found the following results amount offspring:
Wild,stubby bristles 424
ebony, stubby bristles 58
wild type body,normal bristles 62
ebony body,normal bristles 456
Explain about all the results.