The double helix structure of DNA is beautiful and concise, with only four base pairs and 22 pairs, which is a simple treatment, just as the computer uses 0,1. One of the great advantages of this structural characteristic of DNA is that it guarantees the accuracy of its reproduction. DNA carries the life of the password, if there is no reliable structure, it is difficult to ensure the correctness of the copy, the results can be imagined, perhaps today you are human, tomorrow becomes another kind of creature, life is not stable.
DNA uses two simple methods to ensure its reliable replicable properties, one is the above four base pairs, 22 pairs, this mode, according to the DNA of any one of the two chain can easily form a complete DNA, and DNA replication is the two chain in two, They then reproduce the other half according to their own to form the complete DNA. This is a simple and reliable fission pattern, the probability of error is very small, but a DNA, really useful gene fragments accounted for only about 3% of the entire DNA, about 97% of the gene fragment is useless, we know that a cell in a DNA length of about 2 meters, and a cell with a Kinge protein in it, like a busy factory, in such a busy factory, although 97% of the DNA is useless, but these useless parts, in fact, is the DNA to reduce the error (or damage) one way, the factory is OK, Because the factory workers are more or less controlled, the energy is not so big, but to deal with the universe of the non-wear of high-energy particles, each impact is catastrophic, this useless redundancy is still able to reduce the effect of real harm. Of course, such a purpose at present can only say a speculation, in the end is really useless or useful have yet to be explored.
Of course, DNA hurts, the body has a complex mechanism to monitor and repair, but does not guarantee 100%, so the reliable replicable feature is critical, which is very beneficial for monitoring and remediation. It is important for us to ensure the reliability of replication, because this replication of DNA is carried out in our bodies all the while, and cancer is the cause of this replication error or the failure of the gene to be repaired. Replication error rate is about one out of 10,000, of course, is not to say that mistakes will get sick, because of the error, the body will have a monitoring and repair mechanism in effect, so it can be said that under normal circumstances, the likelihood of human cancer is very very small. But because of environmental and lifestyle problems, cancer is now more frequently-occurring, not divine providence, but self-cherishing.
Simple is a kind of beauty, but also a guarantee!
dna--Simple is beauty (boring Research Society)