Genetic variations refer to differences in genes or DNA sequences among individuals within a population. These variations can arise through mutations, genetic recombination, and other processes, and can impact traits such as eye color, height, or susceptibility to diseases. Studying genetic variations is important in fields such as genetics, evolutionary biology, and personalized medicine, as they can provide insights into the genetic basis of traits and diseases, and inform strategies for prevention, diagnosis, and treatment. Techniques such as genome sequencing and genetic association studies are used to identify and characterize genetic variations.