A female fruit fly with the recessive mutant phenotype of whiteeyes and miniature wings is mated with a male possessing thewild-type phenotype of red eyes and normal wings. Among the F1s,all the females are wild-type while all the males exhibit themutant phenotype. The F2s resulting from a test cross exhibitpredominantly (63%) parental phenotypes. How do you explain theseresults?
