Genetics encompasses study of structure and function of genes; causative factors, physiological consequences of genetic variations as well as various other aspects of heredity. Genetic studies involve in depth analysis of diverse features of DNA and chromosomes, reproduction and heredity, recombination and genetic linkage, gene expression, the central dogma of life, genetic mutations, evolution, genomics and DNA sequencing. Genetics helps in comprehending the molecular aspects of various diseases and helps us to formulate specific treatment and management strategies. Scientists are currently engaged in finding the cure for chronic diseases by modifying the associated genes, a process referred to as gene therapy; and it is speculated as the future of medical treatment practices.