Can cancer be predicted early? Why are people born color blind? How are mutations passed on? From color blindness, muscular dystrophy, and cancer to even the polymorphism that occurs to cause blue eyes, mutations are a crucial topic to understand in the scientific community. Mutations are alterations in genetic sequences, such as when the body codes for the wrong gene, whether it be due to an environmental factor or an intrinsic factor. In this article, we will explain how cancerous mutations work, and address potential ways to improve cancer diagnosis and treatment in the future.