Following recombination, they infect an insect with the virus, which carries the selected gene. Next, the infected insect begins to produce antibody proteins that express the gene. Scientists then "harvest" the genetic proteins from fluids extracted from the insect.
昆蟲感染病毒後，體內自然會產生帶有這種基因表現的抗體蛋白，再抽取昆蟲體液，來「收成」這種基因蛋白。