On the right-hand side of your screen, you are provided with a list of starting materials. To perform genetic modifications, you must combine two different materials by dragging them from the right-hand column to the center of your screen. When you have two materials in the workplace, you can then combine them by placing one over the other. If these two materials can be combined to produce an intermediate or a final product, a new material will appear on the right-hand side of your screen. After combining a series of materials, you will eventually engineer a final product that can be used to address a global issue in the medical, bio-manufacturing, agricultural, environmental, and other fields. If you are interested in learning about what a material is, hover over the item in question in the menu bar and a description of the object will appear.
Have fun and craft away!