Genetically modified foods is all about altering the genetic make-up of various crops or organisms which include mainly maize, canola and soya. In the process a chunk may be taken from a DNA string and replaced by a chunk from another variety or line, using molecular methods to facilitate the process. Some people may conjure up images of laboratory assistants with using tweezers to manually alter the sequences, but that would be impossible, due to the size of the medium they work with.
Tweezers would have made the outcome more predictable if it could be used, but with the actual processes used it is a trial and error thing and anything can happen, in spite of all the advances and lessons learned and the application of the the resultant methods. These altered dna strands are then incorporated into seeds or organisms and planted or raised to monitor the outcome. If the product complies with certain expectations, it is then released onto the market and mass-produced
The problem here is that there is no guarantee that these resultant strains or lines were evaluated in a laboratory. In fact, it would be extremely costly and labour-intensive to do that and seeing that there are no real monitoring done to make sure that these products are safe for human consumption, the big players in this field tend to just throw it out on the playing field
Test results are almost impossible to acquire from these companies, if it exists at all. There are individual groups or institutions that are doing tests on these products, but they have an enormously huge task ahead of them and for every finalized test, multitudinally more products flood the market. Funding is the main problem here and until legislation levels out this problem, the public in general will be bombarded with untested GM foods. When buying any of these products the chances of buying an original non-altered variety are getting slimmer every day. In Europe there is a growing resistance against GM foods and imports are strictly regulated
Another trend in this field is the focus on lines that are resistant to a certain broad-based herbicide. In this case lines are developed not necessarily to enhance the product, but to simply make it more resistant to this herbicide, which was developed to kill almost any other unwanted plant in the area. It is widely used in agriculture, so that it is now more convenient to alter a crop’s dna to make it suitable for use in conjunction with this herbicide.
In lab tests done on some of these products, some of the mice use in these tests developed lesions or other abnormalities. GM products have penetrated every country in the world and has contaminated almost the entire range of original varieties. The last country that was still untouched by GM bombardment was Mexico, but that has changed with the latest crises that hit the country and GM corn are now imported with possibly irreversible results to the corn industry.