A second mutation at the major 'reward' QTL leads to greatly increased nectar volume and visitation by hummingbirds. A third mutation at the major QTL for pistil length improves the efficiency of pollen deposition by hummingbirds. As it turns out, certain very simple nonlinear dynamical systems are able completely mimic the behavior of morphological change observed in monkeyflowers, the rapid development of different morphological forms as was seen in the Cambrian Explosion and the stasis and rapid change suggested by the theory of punctuated equilibrium. These nucleotides are mutated and a new screen form is produced. The variety of screen forms is almost infinite from this simple program.
Selection is a program which mimics the process of natural selection.
When the program starts, one can select the type of geometric form you want to select for. There are six choices. But any geometric shape can be can be selected for. The program was written to answer the standard argument against evolution which says that any given function in a protein is too unlikely to have been formed by pure chance. For instance, in cytochrome c, there are approximately 100 amino acids.