Entomology, the study of insects. Scientists specializing in this field are called entomologists. They are chiefly interested in how each kind of insect either harms or benefits humans. They study the origin, development, structure, habits, and distribution of insects. Entomologists work in universities, for government agencies, and in private industry. They have helped chemists develop insecticides, farmers control crop and livestock pests, and physicians conquer diseases spread by insects.
Stud fees for premier racehorses can fetch hundreds of thousands of dollars. Could you make millions by producing a champion's exact genetic double?
Gene therapy is easy to describe on paper but much trickier to implement in human cells. Still, there are success stories. And 'bubble boy' disease, aka severe combined immunodeficiency syndrome, is one of them.