Friday, April 3, 2015

Issue 562 GMO Types April 3, 2015

Well, there are several types of Genetically Modified Organisms (GMOs) and I thought it would be nice if I outlined them for you my readers.  So let's get started.

Artificial Selection:  This is the most commonly used GMO type.  In fact, we have been using this type for thousands of years.  Basically, we choose a plant and grow several looking for a specific trait.  Then we continually grow that plant with the desired trait in order to strengthen it and make it more robust.  For example, the selective breeding of corn is how we got those big yellow corn stalks we eat today as opposed to the original that never grew bigger than the size of baby corn.  Artificial selection is also the end step for the remaining three types of genetic modifications as well.  So artificial selection is very important (note, this processes was not only used in food but in animals like cows, dogs and cats which allowed them to develop into the domestic animals we own today).

Crossbred:  In this case, pollen of different plants with a desired trait such as fungus resistance, or pest resistance is sprinkled onto the flowers of the primary plant you wish to have gain that trait.  For instance, watermelon pollen was sprinkled on tomato plants and artificially selected to get even larger tomatoes (they even had a green hue, and stripes like a watermelon along with a sweeter flavor).  This is more natural to a degree as it is merely putting pollen onto the other plants flowers to see what plants grow out of it.  They even created a tomato tree!  So while it seems odd, there is the possibility that at some point these particular plants may possibly have existed in the future.

DNA genetic modification:  More controversial than the first two, this one literally inserts one set of DNA into another set.  So you may place a gene from a pig into that of a carrots to see the results and possibly get a desired result. Weird, yes, but also interesting.

Mutagenesis:  This final one exposes plant DNA to chemicals or radiation in order to mutate it to get a desired result.  This one is more controversial as it is completely unnatural and the idea of altering DNA via radiation and chemicals makes us think of things like cancers.


Conclusion:  These are the types of genetic modification with the top one being the main one, and the rest being used more in modern day.  It is important to note that while GMO's are not required to be tested, all are tested voluntarily because the FDA can pull them from the market at any time.  Also, if the GMO is considered pest resistant, it is tested like a pesticide and goes through further testing as opposed to the others which are modified for color, size, and other attributes.  Also, it is important to remember that it is the traits of the GMO's that can potentially harm us, not the making of GMO's as we do not want to create super viruses or weeds, or cause cancers.  Overall, I think we may have to distinguish each GMO from each other like we do with fortified and unfortified foods.  This allows the market to decide which ones they feel safer consuming and thus more money will be poured into that variety of GMO rather than us condemning all of them as bad.  So what say you my readers, know that I have armed you with some basic knowledge?  Should we distinguish each type, or should we endeavor to explore further into the mystery of science and life with respect to our food.

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