The human body is a system unto itself. Highly advanced but not without flaws, the human
body must maintain its structural integrity in order to survive. Survivability is achieved in the
long term through procreation in which the genetic code of the original host is inherited by the
new human. Human replication ensures host survivability.
If we start to examine the inner-workings of the human body, we could make the determination that the brain is the master database of the system. It
stores information in various parts controlling the nervous system, heart rate, respiration, digestion and other functions that occur unconsciously throughout
the body. The brain is made up of cells each containing a complete copy of the human’s genome. Within each cell chemical is the nucleus of that carries the
genetic instructions for making a human organism. It contains most of the cell’s genetic material, organized as multiple long linear DNA molecules. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression. Gene expression is the process by which inheritable information from a gene, such as the DNA sequence, is made into a functional gene product.
Gene regulation gives the cell control over structure and function, and is the basis for cellular differentiation and the versatility and adaptability of any organism. Gene regulation may also serve as a catalyst for evolutionary change, since control of the timing, location, and amount of gene expression can have a profound effect on the functions (actions) of the gene in a human.