Introduction
Recombinant DNA technology is one of the most fascinating fields in biotechnology. It stems from an understanding of functions of DNA and discoveries in molecular biology. The foremost technique in recombinant DNA technology is the transfer of a sequence of DNA (gene) from one organism to another. Hence, it is also called as Molecular cloning or gene cloning or broadly genetic engineering.
Genetic engineering is especially useful to introduce a gene from higher organisms in bacteria or yeast. Since manipulation may result in large-scale production of several pharmaceutically important compounds, the exploitation of microorganisms for the benefit of mankind becomes vital.
