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So, that are just some examples of the new, genetic engineering which we humans can harness. Is it good or bad though? I think it shouldn’t be used, as the negative sides far out weight the positive.
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If this were the case, you would see GM products used 0% of the time.
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However, we normal folk don’t really seem to have much of a choice, as nearly 60-70% of food we consume (that are sold in supermarkets) are made from genetically engineered crops. They contain substances that humans were not suppose to eat naturally. Who knows what that unnatural stuff will do to us?
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What unnatural substances does genetic engineering of food organisms introduce? All we are doing is adding DNA, which is hardly absent from our food, in fact we need it to survive. So all that there could possibly be is the substances produced by these genes. Genes which have come from other organisms (hardly unnatural). So then, geneticists must have to be modifying our food to produce harmful chemicals for this to be true. I'm sorry, but where's the point in that? That is counter-intuitive to the purpose of GM food. What's the point of creating a crop that produces a toxic antifreeze that remains in them even to the table? Firstly, it will be a natural antifreeze, present in the original organism, so its toxicity, if any, is likely to be limited (and no one will choose to splice a gene for something toxic into food). Secondly, not must is going to be needed just to keep ice crystals from tearing the cells apart, so the quantity is going to be limited and within acceptable levels. Thirdly, it is likely that it would not even survive preparation anyway. These considerations are factored into the design process. It may surprise you to learn, but wavy-haired mad scientists cackling over static electricity in a stone-walled laboratory are somewhat rare in today's genetics industry. I have not yet joined the professional workforce.
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There could be side effects towards DNA surgery, as such, they could make mutations which could be harmful towards our health and the environment.
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You mean
gene therapy (the closest I could find to the term)? The effects, so far, are incredibly limited. Our cells do not easily accept foreign DNA, and applications are limited.
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There could also be wide-spread crop failure, as most seeds (genetically modified ones) are cloned, so they have identical DNA, so if a virus arises, it could wipe out whole crop cell, which is world wide.
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A problem only if we go ahead and use only one clone parent, so there is an obvious solution to that, and a pandemic is only possible if the crop is grown the world over (unlikely) and is allowed to spread, which can be dealt with in the usual way. It could only affect one strain of one species, and if the strain was made to grow to feed those unable to grow conventional strains, if the crop fails they are no worse than they would have otherwise been. (harsh, but the logical conclusion). And after all, diversity is an issue that can be dealt with.
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Also, messing with DNA could cause new virus to attack us. Many virus cannot harm humans, as the ‘species barrier’ prevents it. However, scientists have been creating new genes that can ‘ignore’ the barrier, this also means there is a lope hole for the virus.
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I can find no evidence of cross-species risks to humans, only within plants. The viruses used in gene therapy on humans are made using non- or low-pathogenic viruses already present in most humans, such as adenoviruses or adeno-associated viruses.
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Yes its cool that poor places can grow rice easy etc now but what isn't cool is that the seeds of these plants spread and so the GM crops will out do the "normal" plants.
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Obviously care must be taken to prevent engineered genes from entering the wild. Generally the new forms will not out-do the wild phenotypes, even with genes that make them hardier. Remember, they are still domesticated species, and domestication and selective breeding enhances traits that are opposite to those natural selection would favour. Otherwise we would not have had to breed them into these forms in the first place. Obviously. Cross-breeding with wild strains is the biggest concern, and there are ways to tackle this issue (sterile specimens, for example).
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So all the rice is now toxic or a deterant to whatever bugs used to eat them, what happens when all those bugs die cause they can't eat the rice anymore, what happens to whatever used to eat those bugs? Boom.
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That's hardly a new effect with genetic engineering. Pesticides anyone? But genetically engineered crops won't run off into rivers, nor accumulate through the food chain in the manner of pesticides. Those insects that do not eat the crops suddenly have an advantage. If the behaviour is genetic in origin, it will spread through the population in a few generations so long as the crops continue to be grown. Natural selection.
Remember that this is a new technology. There are risks associated, as there is in everything, but they are, can and will be tackled as the technology develops. In the meantime, I do not agree that the risks warrant abolishing all the current and potential benefits genetic engineering can offer us.