Figure 3. Discussion slides and description. These slides and their description have been made available for download and use
at the following site online. They are designed to be used as a follow-up discussion with students to help them understand the
relationship of the activities to enhancer regions, developmental biology, and evo-devo. (A) Slides: https://www.dropbox.com/s/
2xcfxhqdekb2j6l/Discussion%20powerpoint_final.pptx?dl=0. (B) Word description file: https://www.dropbox.com/s/
Figure 2. Lego activity. Using the same set of Legos (left image), students create many different designs demonstrating how the
same building tools can be used to create highly different phenotypes depending on construction. In the same manner, very similar
sets of genes can yield highly distinct organisms based on when, where, and to what extent each gene is used during development.