Recombinant DNA refers to the DNA molecule that has been artificially created by combining genetic material from different sources. It involves the process of inserting or combining DNA fragments from one organism into the DNA of another organism, resulting in the creation of a new genetic combination. This technology allows scientists to transfer specific genes or traits from one organism to another, enabling the production of desired characteristics or the study of gene function. Recombinant DNA technology has numerous applications in various fields, including medicine, agriculture, and biotechnology.