Original sentence: GM foods pose both known and unknown risks.Genetically modified foods may potentially offer consumers and farmers a crop with more desirable properties.The majority of commerically available crops have an agronomic advantage like herbicide resistance.There is evidence of environmental and economic benefits for the crops already available
Edited sentence: The proccess of geneticaly modifying an organism is highly inaccurate and the outcome cannot be predetermined.There are substantal risks, both known and unknown