Saturation mutagenesis is a term used in genetic research to describe a comprehensive technique for altering genes by introducing multiple mutations at random locations. This process allows for the study of the impact of mutations on a gene's function and helps to identify important elements within a DNA sequence. Synonyms for the term include complete mutagenesis, exhaustive mutagenesis and random mutagenesis. The goal of this approach is to create a comprehensive library of mutations that will provide researchers with a complete understanding of the role of individual genes. The process is particularly useful for discovering new targets for drug therapies and for advancing our understanding of genetic diseases.