keep_talking Posted January 9, 2012 Share Posted January 9, 2012 My question is simple. WHY??? What "force" causes the proteins to bind? Why does A bind to C? Why does G bind to T? How did DNA know to do this? Why does the random chaining of DNA inside the nucleus of a cell lead to the development of an extraordinarily complex organism? HOW does DNA know to allow its instructions to be read, replicate itself, and if need be repair itself? These are not things we would think happen naturally in our world. Compare it to building a skyscraper. Ive never seen them build themselves. It takes the hands and minds of thousands of workers and builders to collaborate. None of this makes sense to me. Without DNA we simply would not exist. Yet, something that is so small and seemingly insignificant can be the secret to the most intelligent being's on our planet? If DNA is capable of all these things, should we not consider DNA itself to have properties of a living organism? Its obviously "smart" enough to be aware of it's own existence, improve upon itself, and tell a cell to replicate, all the while not allowing it to happen without passing a copy along. At the same time, be thousands of times smaller than a single cell in your body? DNA is smarter than people think. Sure its just proteins and acids suspended in the middle of every organic cell in your body. But apparently, it gave way spontaneously, and created all life on Earth? Fat chance people. There is OBVIOUSLY a lot more to DNA than we know. -2 Link to comment Share on other sites More sharing options...
uncool Posted January 9, 2012 Share Posted January 9, 2012 (edited) My question is simple. WHY??? What "force" causes the proteins to bind? Which "proteins" are you talking about? Proteins are specifically polypeptides, which DNA is not. Why does A bind to C? Why does G bind to T? How did DNA know to do this? First, A bonds with T, and G bonds with C. Second, hydrogen bonding leads to attraction between the DNA, while other forces lead to repulsion between the bases that aren't paired. A and G are purines, while C and T are pyrimidines; purines and pyrimidines attract, because they are the correct sizes; two bases that are too large (pyrimidines) repel each other due to being forced too close together and therefore having electron overlap and being repelled, while bases that are too small (purines) repel each other because they aren't close enough to have hydrogen bonding. certain structures mean that the hydrogen bonding is stronger between A and T than it is between A and C, and similarly G and C to G and T, etc. Why does the random chaining of DNA inside the nucleus of a cell lead to the development of an extraordinarily complex organism? HOW does DNA know to allow its instructions to be read, replicate itself, and if need be repair itself? That isn't the function of DNA; that is the function of the attendant proteins and RNA. DNA only responds as a chemical reaction that has been tested multiple times. These are not things we would think happen naturally in our world. Compare it to building a skyscraper. Ive never seen them build themselves. It takes the hands and minds of thousands of workers and builders to collaborate. None of this makes sense to me. Without DNA we simply would not exist. Yet, something that is so small and seemingly insignificant can be the secret to the most intelligent being's on our planet? If DNA is capable of all these things, should we not consider DNA itself to have properties of a living organism? No, since that isn't the definition of living. Its obviously "smart" enough to be aware of it's own existence, improve upon itself, and tell a cell to replicate, all the while not allowing it to happen without passing a copy along. Again, that isn't the function of DNA, but of its attendent molecules. At the same time, be thousands of times smaller than a single cell in your body? DNA is smarter than people think. Sure its just proteins and acids suspended in the middle of every organic cell in your body. It is not a protein, nor does it consist of proteins. It is made up of nucleosides, which are nucleotides (bases) bonded with a sugar backbone. But apparently, it gave way spontaneously, and created all life on Earth? Fat chance people. There is OBVIOUSLY a lot more to DNA than we know. There is a lot more structure necessary for DNA to "create all life on Earth". You need proteins to transcribe the DNA into RNA form; you need ribosomes to translate the RNA into protein form. The proteins then "fold" to give you the necessary structure. In order for all of this to be contained you need a bilipid wall separating the inside of the cell from the outside; sometimes you have such a wall separating the DNA from everything else. DNA by itself is nowhere near enough for cells. =Uncool- Edited January 9, 2012 by uncool Link to comment Share on other sites More sharing options...
CharonY Posted January 9, 2012 Share Posted January 9, 2012 There is OBVIOUSLY a lot more to DNA than we know. Considering the large amount of wrong statements in the OP, it is obvious that someone should read up on the stuff that we know. Link to comment Share on other sites More sharing options...
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