The colony

DNA is a long polymer molecule consisting of repeating blocks - nucleotides. Each nucleotide consists of a nitrogenous base, a sugar (deoxyribose), and a phosphate group. In DNA there are four types of nitrogenous bases - adenine, guanine, thymine and cytosine. (see the picture). Nitrogen bases of one of the chains are connected to the nitrogen bases of the other chain by hydrogen bonds according to the principle of complementarity: adenine binds only to thymine, guanine only to cytosine. To whom it is interesting you can esteem in more details in an Internet or in the specialized literature.
The result. A unique unit is the cell. And only a cage. The cell is what we call life. She is born, lives, feeds, multiplies and dies. All this is controlled by the information recorded in the DNA. The cells are collected in organs. Organs form a body. This world belongs to the cells !!! And the cells live by the rules of DNA.
Of course, we will not deny the existence of man as such. We are. But if you determine a person what it is, I would compare it to a colony of living cells. According to the definition of the colony, this is the territory (the human body), without independent power (we can not affect the course of life of our body) and controlled on the basis of a special regime (in our case all cells are controlled by DNA according to certain rules). We do not know anything about our body. A CELL KNOW ABOUT US ALL.
For example, a person with his organizational structure is very similar to any city. Where people are like our cells. If there are people in the city, then there will be a bakery, a water pipe, a sewage system, a shop, houses and roads, treatment facilities, by the way, and work. All that is necessary for the life of people. If people leave the city. The city will die. Will cease to exist. The roads are empty. Bread will not be. The houses collapse. We do not move from cities to cities, as something special and living. Or it is worth us to level.
How do you live under the control of the cells. By the way the largest cage is an ostrich egg. It turns out to us the world - can be defined as a microcosm.