Why do you believe in the existence of DNA so-sick since you are so skeptical about science in general?Did you ever take a university genetics or biology class?
Geneticists , biologists, astrophsicists etc believe that evolution is a science, not a religion.
DNA is relevant to the science of evolution . Mutations in DNA are one aspect of evolution and a single mutation at one base pair can have drastic effects.One example is scientists' use of DNA to determine how many years seperate organisms from a common ancestor.
The discovery of DNA had nothing to do with intelligent design . I knew a genetics professor who worked with Watson etc.