SURVIVING WITHIN

Reading what is currently being taught to me in biology is rather interesting. It is saying exactly the same that I am being taught except that it shows some analogies and different methods of showing and explaining the process and the way in which things work. For example, Richards Dawkins explains chromosomes as volumes, and DNA as instructions and so forth to make it easier for the reader to understand. This is good because not all the readers know much about biology so even though the author many times assumes we already know some things, by doing this you get to understand some basic science even if you don't identify each term. It also explains the basics of the ways in which things work so one gets to understand each idea. One very interesting method of survival that nature has developed is the way in which traits are stored. Even though one of the characteristics might not be present in one generation, it can still be kept from one generation to the next. It is astonishing how the molecules and cells get a survival machine and adapts it to its benefit. Even though nature is not conscious of the act, things have evolved in a way that cells and traits are preservable. In this way, the DNA instructions specify a specific characteristic in each person and store others for future generation. When one receives the mothers and fathers chromosomes and unites them to create your own DNA, many possible combinations of results exist. The DNA eventually gets created by the mixing and arranging of inherited characteristics and in situations such as eye color, if you inherit brown and blue eye possibility, you will end up having brown eyes because brown is a dominant trait. If you wanted to have blue eyes, you needed both parents to give you blue eye "instructions". This shows how brown, the dominant trait is or has been more "selfish" than the blue trait, and therefore appears in the physical appearance. The Blue trait, however, is also somewhat selfish and fighting for survival and will not permit his presence to be forgotten. These recessive traits have therefore developed a way in which to survive. They may not show in a person but are stored internally so when that person reproduces, its offspring also has the possibility of showing the trait. With time, some humans are "better" survival machines than others because they confront the world better and survive longer and in general fit better the description of "survival of the fittest" and therefore, the genes in these humans tend to get spread more and each time humans evolve and continue to evolve. Currently however we do not feel the change because evolution is a very slow process but one thing is definite: molecules that are millions and millions of years old have survived within their survival machines and we are just one more try of a machine that might get renovated, kept or thrown away according to its capability.