What Are Genetic Disorders ? According to the National Human Genome Research Institute, a genetic disorder is a "disease caused in whole or in part by a change in the DNA sequence away from the normal sequence."Our book "Guide to the Most Common Genetic Disorders (Symptoms, Causes/Genetic profiles, Types and Inheritance)" is written in outline format for ease of use. It is of great value to medical geneticists, genetic counselors, pediatricians, neonatologists, developmental pediatricians, perinatologists, obstetricians, neurologists, pathologists, and any physicians and health care...