Recombinant DNA technology, also known as genetic engineering or gene splicing, involves the manipulation and combination of DNA molecules from different sources to create new genetic sequences. This technology enables scientists to transfer specific genes or genetic material into different organisms, such as bacteria, plants, or animals, altering their characteristics or introducing new traits. The process typically involves isolating a desired gene or DNA sequence, cutting it using restriction enzymes, and inserting it into a vector, such as a plasmid or a virus. The vector is then introduced into a host organism, which can replicate and express the inserted gene, resulting in the production of proteins or other desired products. Recombinant DNA technology has revolutionized various fields, including medicine, agriculture, and industry. It has facilitated the production of therapeutic proteins, such as insulin and growth hormones, genetically modified crops with improved traits, and the development of new drugs and vaccines.