Suppose that you are raising Downton wombats, carefully because they bite when teased.You notice that some of your wombats have white spots, whereas others have solid coats. What three crosses could you carry out to determine whether white spots are due to a dominant allele? What would the progeny of these crosses be if white spots are dominant? But before you start, convince yourself that blindly doing the crosses: spotted x spotted, spotted x solid and solid x solid, will not answer the question.