CGAT is a grouping of nucleotides denoting the major elements of DNA. However, there are several synonyms for this term. Hence, we can call CGAT as nucleotides, bases, or nitrogenous bases. These chemical substances serve as the foundation for the genetic makeup and molecular structure of all living organisms. Moreover, they provide specificity to DNA sequence and carry genetic information that determines traits such as eye color, height, and level of intelligence for an individual. In molecular biology, mutations in the CGAT sequence can lead to serious genetic disorders. Scientists use these synonyms to better understand molecular biology and create ways to combat genetic diseases.