Realities of transgenic maize Corn is one of the three most important crops in the world, with Mexico as their country of origin, is one of the products based on the Mexican diet. However, in recent months has deprived a controversy on whether or not to grow genetically modified varieties of this seed. In order to clarify based on scientific principles the potential risks and benefits of genetically modified varieties in the country, the Mexican Society of Biotechnology and Bioengineering of the workshop discussion on the effects of transgenic maize, where international experts discussed four topics: effects genetic engineering on the maize genome structure, consequences of these varieties in Mexican biodiversity, socio-economic impact and its consequences for human health. At the end of the workshop, held from 17 to 19 March with the participation of UNAM, CINVESTAV and U of G, the U.S. universities of Nebraska, Missouri, Georgia and Arizona, as well as the International Centre for Maize and Wheat Improvement and the Institute for Research and Development of France, the scientists presented a paper which concluded that scientific evidence is lacking to determine that a transgene may alter the characteristics of the genetic structure of maize. Also reported that the potential impact of releasing genetically modified corn should be analyzed on a case by case basis. On the other hand, presented no evidence to suggest that transgenic plant traits have been transferred to humans or animals. However, they recommended that in Mexico and in the case of maize, to avoid the use of transgenic selection systems based on antibiotic resistance genes.