A transgene's a gene or genetic material that's been transferred naturally or by any of a number of genetic engineering techniques from one organism to another. In its most precise usage, the term transgene describes a segment of DNA containing a gene sequence that's been isolated from one organism and's introduced into a different organism. This non-native segment of DNA may retain the ability to produce RNA or protein in the transgenic organism, or it may alter the normal function of the trans… (More on Transgene)