Prime purpose of this lecture is to present on Genetic Engineering. Genetic Engineers can alter the DNA code of living organisms. Genetic engineering (GE) is the modification of an organism’s genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species. Here briefly present on: Selective Breeding; Recombinant DNA; PCR; Gel Electrophoresis and Transgenic Organisms in terms of Genetic Engineering.