A researcher is involved in the production of insulin through recombinant DNA technology. Which statement about recombinant DNA is most accurate?
A) Recombinant DNA involves the insertion of foreign DNA into a bacterial cell to produce insulin. B) Recombinant DNA involves the mixing of DNA from different species to create a hybrid organism. C) Recombinant DNA involves the replication of DNA in a laboratory setting to study genetic mutations. D) Recombinant DNA involves the modification of an organism's existing DNA to produce insulin.