It is hard to understand how to mix the phenotypes with all those variables in the game. Suddenly one passes from making simple color combinations to have to take into account DNA properties and then the radiation thing. However, the concept is quite interesting and I'll give it a second try once the voting phase finishes. It is interesting to see this kind of more-academic games.
I'm not sure about the adherence to the theme, because even though the player is asked to produce a specific phenotype, in some levels your goal is to produce to things of the same type, not only one.
The idea is quite original. I encourage you to keep working on the idea. It could be an interesting puzzle-serious-academic game.