martes, 27 de diciembre de 2011

The creation of genetically modified animals the altering of an animal?s genetic codes to make sure that it displays only the expected characteristics and do not possess any undesirable qualities. This is done by the addition of genes from other species, the deletion of undesirable genes or modifying the existing genes to bring certain traits forward. Though chimeras and cross breeds have been pretty much a staple in science fiction novels, nowadays, it is a wide known fact. The popular techniques to create genetically modified animals include pro-nuclear micro-injection, embryonic stem-cell manipulation and nuclear transfer. Genetically modified animals such as rabbits, cows, goats, pigs, rats, mice and cats are created with these techniques to arm them to serve their expected purposes.There are many benefits that come from the creation of genetically modified animals. For instance, by the manipulation of their genes, scientists are able to study the functions of genes, gene tic diseases and how to treat genetic mutations such as cancer and other illnesses. Most of these genetically modified animals are used for the economic production of food items that are rich in rare nut essential nutrients. Genetically modified animals are also created with the development of the medical sciences as well. For instance, some animals can be genetically manipulated to grow replacement organs and tissues for humans and to harvest other medically valuable components to battle certain diseases not to mention .The major disadvantage is the speculation that these pesticides and resilient genes can pass on to consumers to create u desirable conditions for them such as allergies, diseases and cancer. Though any of these effects are yet to be proven or actually reported, genetically engineered food continues to stock up super market aisles and to be purchased over natural foods. Nowadays, over 65 percent of food items are genetically engineered food or made with popul ar genetically enhanced components such as corn, rapeseed (canola) or soy. Even though reports exist that laboratory animals that have been fed genetically engineered food have suffered considerable organ damage and illnesses, humans are apparently immune to these effects. But the speculation hasn?t died that it may affect the future generations and their genetic makeup.

Such studies have reinforced the theory that the benefits of organic food are not a mere perception and it is in fact far superior to conventional food that depends on chemical fertilizers and pesticides. The fact being that non organic food are more susceptible to be contaminated with chemical fertilizers and pesticides and more sustainable methods are overall better for ones health as well as for the environment. There again there is another school of thought that says that organic foods are harmful and the benefits of organic food do not outweigh conventional food stuff and is unsuitable for cons umption as they do not use strong fertilizer and pesticides which could result in a possibility that the food could be contaminated with harmful bacteria and parasites, despite the debate by both parties any strong or harmful impact on the health is unfounded. However the benefits of organic food is widely gaining ground and many consumers believe that organic foods have the ability to promote good health due to the lack of chemical additives and that the flavor of the food is far superior to non organic food, and definitely the more eco friendly option.

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