Problem: You are interested in the genetic relationship between two diploid species of plants, and you believe they are actually not two species but are the same species that differ by a small number of alleles. You decide to cross Species I with Species II and all the plants from this cross phenotypically look like a hybrid intermediate between the two parent species. You allow one of these hybrid intermediates to self and look at 64 of the progeny of this self-cross. Among these 64 progeny, you find one plant that is phenotypically identical to the original Species I parent and one plant that is phenotypically identical to the other species II parent. Based on this result what is a possible genetic relationship between Species 1 and Species II? Explain how you came to this conclusion.