The genes for the traits that Mendel worked with either are all located on different chromosomes or behave as if they were. When Mendel crossed a pure-line parent that produced wrinkled green seeds with a pure-line parent that produced smooth yellow seeds, he made a set of predictions about the outcome of a further dihybrid cross that would support either dependent or independent assortment. What did Mendel recognize would support the principle of independent assortment?