There are several major issues arising from GM food.
1. Food produced in this way, while high yielding, is actually subject to patents, like drugs, etc, because it has been artificially produced. Therefore no-one but the company who developed it may grow it without a license. This could lead to higher costs.
Also, if the GM food fertilizes neaby related crops, those crops may be considered contaminated, or unsaleable due to patent infringement (this sounds ridiculous but there have been courrt cases).
2. Herbicide- resistant crops can become weeds.
3. The genetic material may spread to other crops in the area, and may therefore make non-edible plants herbicide resistant etc etc.
4. GM crops, if they are high yielding, may become the sole or heavily dominant source of that crop. That is, it may be that other non-GM crops become financially non-viable to grow. If a pest or disease arises that can target the GM crop, it will have a devastating effect if insufficient alternatives exist. This is not just for GM foods, read about the cause of the Irish potato famine, where lack of diversity was responsible for most of the potatoes succumbing to a single strain of potato blight.
Hope this helps
2006-10-08 22:50:16
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answer #1
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answered by Labsci 7
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There are 2 issues.
1. )
The public is afraid of allergen molecules from other foods going into something else. The peanut protein may be put in whatever else , that the user is not aware of.
Or there was once noise made of scorpion gene in the tomato.
2. )
The technical problem is that the genome (gene-set) has it's own built-in "housekeeping" , but not one that keeps house in the normal way. In an animal/barbaric way maybe ,, that keeps its own score (and accounting) and re-writes everything you have designed ,, in the most disastrous way (because this "accounting" is balanced to its own selfish needs.)
To avoid this ,, most of today's actual examples are not spliced into the nucleus , but left outside as a plastid. So u don't disturb the chromosomes.
If u put something new in the nucleus , it can grow a few generations then all of a sudden , the genome launches a war to re-write the new code. It can be very wild both at the gene and somate.
Major chromosonal re-shuffle happens for a few generations ,, before it settles to something neither u nor I want to eat. And something we have never had before.
The problem is not designing something OR not knowing what to put. You cannot keep growing this thing for very long before the genes get agressive and become a monster.
We cannot even put good genes in anything and not get a fierce respond.
If we have to save ourselves by genetic modifications ,, it's suicide. !!
2006-10-09 06:02:09
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answer #2
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answered by wai l 2
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I am not aware of bad issues from genetically altered food, from what I understand they alter them to combine wanted traits or to get rid og unwanted ones. They have done this with corn to ward against pest.
2006-10-09 04:57:32
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answer #3
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answered by shae b 1
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