Why all the insults? Are they really necessary?
So cite an example of such a species that caused damage.
Yeah, I'm sticking with the rabbit and the cane toad. Same "introduced organism" problem.
Also not applicable to agriculture, since crops have been altered over thousands of years to be beneficial to us, not the plants. By your definition, every cultivated plant is unhealthy. As an example, the almond has been selected so as to be non-toxic. Wild almonds are toxic but we have removed that from them so as to be able to eat them, and by doing so, made them more vulnerable to predation. Evolution has nothing to do with agriculture, as we have been hijacking it for 8000 years, making crops valuable for us, not themselves.
Again, very big difference between hijacking genetic drift and pointing it where we want it to go, and between just shoving something in from an entirely different biological kingdom and hoping it works out in the long run.
No, you're just making stuff up as you go along again. "Shoving" a gene into a foreign genome may just be as likely to be detrimental as helpful or even neutral. Even natural mutations are usually neutral. You would understand that if you understood that a genome can be tens of thousands of base-pairs, so that it could take a lot of alteration to cause any effect. But I'm willing to bet you don't even know how genomes function.
You're right, I don't, and neither do you. Neither does anyone. Here's the thing though: between these posts, do you know what I did? I went and did some genetic modification with a bunch of transgenic DNA. It's a human gene I chopped out of the genome and stuffed an oncogenic mutation onto, then put into a modified bacterial plasmid cassette that also helpfully encodes for jellyfish green fluorescent protein, then put it into some helpful kidney cells with some retroviral DNA to encase it into a viral vector based on the shell of HIV. Then I went and shoved it in a bunch of human cells, where it's even now integrating with the genome.
You know what this DNA is going to do? Me neither, but I can offer a suggestion because I've done it before: rather than promoting unregulated, cancerous proliferation in these (already cancerous) cells, it actually causes them to slow down and die more than anything. Whereas it usually provides resistance to anti-cancer drugs through the activation of mitogenic and survival pathways, here it does no such thing. It instead promotes the eventual acquisition of anti-cancer drug resistance by some other mechanism, most likely via the suppression of DNA damage-repair mechanisms - thus causing an increase in the rate of mutation and increasing the likelihood of generation of a drug-resistance mutation. Who would have expected that? Nobody would have, because that's an entirely uncharacterised aspect of its function. Partly because, even in its normal form, it has entirely different interactions within various different cell types even just within humans, and because nobody really knows how it works because we know bugger-all about the nitty-gritty of biological processes because it turns out they're really complicated. You could put it into ten different cell types and get eleven different responses.
Now I don't know about you, but it seems to me that if you were inserting a transgene into something you were chucking out into the wild, having a transgenic protein that's not only unregulated within that system, but also promoting DNA damage (or inhibiting DNA repair) would be something you really would not to have out there. How certain are we that they don't? We're not, because we don't really have the technology to check these things (and you can bet that guys like Monsanto aren't even trying). It's an extreme example, but it's one that naturally sprang to mind.
That's because you don't know what you're talking about. You are already incriminating your ignorance by calling DNA "unhealthy." DNA is a molecule and molecules don't have health. Organisms have health.
I think we're just playing semantics here. Shine a bunch of powerful UV at yourself and you'll get all sorts of strand breaks, base mismatches, the works. That's why we have such an incredibly involved set of DNA repair mechanisms. On the other side of the DNA health thing, you've also got the potential for epigenetic silencing of the particular transgene, which is a kind of neat anti-retroviral protection mechanism. I don't think it's a real stretch to suggest that knocking out epigenetic silencing mechanisms might well be one of the first evolutions of GM crops, and that starts making things a fair bit more risky.
Right, we don't know what we're doing. That's why companies like Monsanto are willing to risk billions of dollars of investment -- because they don't know squat about their product.
Damn right they don't. I'm sure they like to pretend to know, though. Lotta hubris over that side of town.
With demands like that, no pharmaceutical product would ever come to market. No invention would even be worth inventing with unreasonable demands like that.
Also not true, because we could always stop the deleterious practices.
You're sidestepping my main point here: we can stop manufacturing a pharmaceutical or any other risky technology. We can't stop the manufacture of biological organisms once they're out in the environment. Hence the far more stringent demands.
Less worldwide hunger, lower food prices, better HEALTH, LESS use of Earth real estate to grow said crops (thereby less destruction of ecosystems like rainforests for tilling), etc. But let's wait 20 years to not do this so as to see if it's risk-free (which no venture is).
I don't want to get into this side of things so much, but frankly the problems of food supply are far more a political problem than a production problem. Without fixing the political and distributional aspects, I don't see it really helping the underlying problem.
I know you just copy-pasted this from a wikipedia article, but p53 is an animal protein, so I'm betting putting into a plant will have no effect.
Why not? Do the plants have regulatory mechanisms that shut down p53? I'm betting very few plants would have anything that functions like hdm2, for instance. I'm not suggesting it be shoved in under an animal promoter. Turns out, proteins don't have a set function and do nothing else - they can have all sorts of incidental interactions. Take jellyfish GFP, for instance. It's pretty much the most-used transgene, both because it's useful and because it doesn't seem to cause much in the way of health issues. It's from a jellyfish, so maybe it ought to be doing nothing, right? But if you transduce it into a cell, it does have an effect beyond making that cell glow nice and pretty green. Increase of cell death, reduction in cell cycle entry, minor morphological changes, etc. Is that because of the protein itself interacting with some other signalling pathway, the presence of transgenic retroviral DNA stuffing up the normal action of the cell's genome, or just because the cytomegalovirus promoter is just pumping out such ridiculous quantities of mRNA/protein that it has an impact on the cellular environment? I don't know, all I know is that it has a minor effect - the sort of thing that has chronic rather than acute consequences, the kind of thing that is hard to see.
While it is true that there is always more to discover in science, you are arguing deliberately greater ignorance than exists in the scientific world.
No, I really don't think I am. We know so very very little.