摘要: Abstract Genetically modified, i.e. transgenic crops, are now being grown on several million acres throughout the world, mainly in North America. Most of these ‘first generation’ products have specific agronomic traits designed to improve efficiency production. For example herbicide tolerant soybean and insect resistant corn two most widely crops. Increasingly, new varieties under test contain product quality or other higher value intended provide benefits end user whether it be producer specialist chemicals consumer. This review describes examples ‘second attempts predict range household, medical, industrial environmental that might become available over next 20 years.