How might researchers use the lac operon control regions through recombinant technology? Solution The process if Recombinant DNA technology takes place with the artificial union of DNA molecules which can come from two or more different sources.This union takes place in a nonhomologous fashion. Moreover it allows the various researchers can use this teachnology to give the various unrelated organisms -the ability to express new phenotypes.This can be done for a variety of different purposes. The use of lac operon control is very important.In humans, the insulin usually comprises of two polypeptides which are usually coded for by two different genes. Moreover the researchers usually insert these set of genes into the lac operon of E. coli.This usually happens after a nucleotide triplet as this triplet codes for the amino acid methionine. This means that the recombined bacterium which is formed begins to produce humulin and this takes place in the presence of lactose,Now the lac operon is very important as it controls the production of enzymes which are always necessary for the processes of transporting and catabolism of this sugar..