The concept of a transgene has been broadly understood for more than 100 years, as the advent of genetic research made its way into the 20th century. As time went by, technologies evolved, and transgenes became widely used during the late 1970s and early '80s. Which is one reason scientists produce transgenic organisms? A) to create new species of organisms
B) to control microorganisms in the soil
C) to treat certain types of diseases
D) to prevent habitats from being destroyed