Brazil's biosafety commission, CTNBio, was unable to reach a consensus Wednesday regarding technical studies on transgenic cotton and corn seeds from Bayer CropScience, Monsanto (MON) and Syngenta Seeds (SYT), a CTNBio spokeswoman said Thursday. CTNBio meets monthly and is responsible for accepting field tests on genetically modified crops. The group's scientists conduct independent studies and analysis on whether the biotech product is harmful to the environment or human consumption. Final commercial approval depends on political and economic decisions made by a consensus of various government departments.