Tagged: Genetic Engineering

The Evolution of Insulin: From Cows and Pigs to Microorganisms Genetic Engineering? Many years ago, individuals with diabetes who required insulin to survive had to inject insulin derived from cows or pigs into their bodies. This method, while lifesaving, was not ideal for several reasons, including the potential for allergic reactions and differences in insulin activity between species. Today, however, the insulin that diabetics inject is human insulin, produced by microorganisms such as the E. coli bacterium and certain strains...