Mutation Resulting in Different Proper Word

• If the mutation produces a different proper word

• • The book does not contain a “typo” but the quality of the sentence containing the different word has been degraded
  • • “He read the book” -> “He read thy book”
  • The biological analogy: the gene coding is altered but still allows the protein to be built (it is still a sentence consisting of valid words), but the shape of the protein is now somewhat different and the biological function is not performed quite as well
  • • The organism is less fit