Hayabusa Rider
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- Jan 26, 2000
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Originally posted by: cquark
Originally posted by: WinstonSmith
All the above are quite unlikely. If you put water into a milk jug, you get milk out? No, you get water. If you have a gene (say one for human insulin) and put it into bacteria (which is not human) you get human insulin. Why? Because the machinery that makes proteins in living things makes the same proteins in living things if given the same instructions. It just is.
I agree that there's no special reason to be afraid of transferring genes from one organism to another. However, even computers aren't as digital and predictable as you make our protein generation machinery out to be, and we can't always ignore the details below the simple picture of the protein generation. Yes, both the computer and the protein generation process will generally perform the correct, identical procedure given identical instructions/DNA. However, both also perform multiple actions simultaneously (in a simulated fashion for a single processor machine, in reality for the cell or multiprocessor machine) and thus are dependent on what else is happening. Race conditions are a type of bug arising from such dependencies in computer programs, where the program functions correctly 99.9999% of the time, but fails at apparent random times. Cellular machinery is less precise and more complex, leading to more and worse such problems.
However, that doesn't mean that I think we should avoid all GM foods, but it does mean that we should acknowledge that there are risks and we should evaluate whether those risks are worth the benefits. I think the current benefits for third world farmers, many of whom live in areas where it is difficult to regularly grow crops, could be tremendous (especially if Monsanto's Terminator technology was eliminated), but I'm less convinced of the possible benefits for first world farmers, who have fewer problems growing food and thus have less need for hardier plants, which often comes at the expense of lower yields, thus reducing the amount of food they produce. Unfortunately, first world farmers have much more money to spend, unlike the people who most need the crops.
There is a certain amount of genetic "creep" in species. Random mutations are bound to occur without genetic manipulation. Finding mutations in wild type is something researchers do all the time. It produces some interesting effects.
Remember though that most mutations are self correcting. When doing a screen we often wind up with dead things. Fausto can attest to that. What you do not see in any biological is a stunning change in well studied systems. Heaven knows many a grad student wishes there were.
Bottom line is that the baseline mutation rate in a transgenic organism ought to be similar to wild type (that means the original unmutated or unmanipulated organism).
Needs further study, which is all I have been advocating. Faustos link is interesting.
Maybe this old boy has just grabbed too many snakes by the wrong end. I am a traditionalist in science. I need to be shown a thing, and convinced before I accept on faith.
