The techniques of modern genetics have made possible the direct manipulation of the genetic makeup of organisms.In
agriculture, genetic engineering allows simple genetic traits to be transferred to crop plants from wild relatives, other
distantly related plants, or virtually any other organism.
Recombinant DNA technology thus has brought a new precision to the process of crop development, which traditionally
selects desired traits through crosses between crops and their wild relatives (a laborious and relatively imprecise method).
Genetic modification can be used in many ways to control a variety of traits of plants, and the consequences
of one manipulation may be completely different from another based on the traits modified.
"Genetically modified," "genetically engineered," or "transgenic" refer to the alteration of the genetic makeup of animals,
plants and bacteria. Currently (2005) GM products include foods and food ingredients, medicines and vaccines, feeds and fibres.