Hi there. Frank Scorpio here, your favorite madcunt geneticist.
I've done some testing to see how the radiation works during genetics. Radiation has had a rather big rework, and when you play with your own DNA you tend to get irradiated. Unlike before, the DNA modifier is no longer radiation shielded. Before when your test subject was irradiated due to the radiation mutation, the machine would shield it and you wouldn't need to wear a radiation suit except for when you did the unstable mutagen method. This is no longer the case. If the test subject is irradiated, you will recieve radiatio