Psychology is science and to discover cause-and-effect relationships, psychologists conduct experiments. What dose really cause and effect of being different from another? Gene is the answer. Genes are known as blue prints for our biology, which in turn define our behavior. The nucleus of each cell in our body contains the genetic material, which code for the entire body. Inside of every single cell in our bodies there are 46 chromosomes that are made up of DNA. Half of our chromosomes are inherited from each parent, DNA is strung along the chromosomes. DNA is the living instructional manual found in all living organisms. The building block letters of DNA are Adenine, (A), Thymine, (T), Cytosine,(C), and Guanine, (G). These are repeated over and over again about 3 billion times in our body alone. DNA can be subdivided into genes, with each gene carrying the information on how to produce a unique protein. When the DNA is collected all together you have a genome. Each gene is a selfreplicatin unit and is capable of synthesizing proteins, which in turn are the building blocks of our physical development. .
Genetically this sequence of nucleotides in gene makes every human being close to his/her identical twins. Genes influence most of the human being traits like skin code, height physical structure, and etc. The variations at different gene loci results in generating different traits from person to persons. Analyzing the human genome will give us insights into why people like the foods they do, why certain people die of heart disease and others of cancer, and why some people are outgoing and others are paralyzed by shyness. In fact these genetic variations gives us clues why one person has a disease that another doesn't, why one is happy and another depressed and why one individual is unique from another. This small genotypic change generates different phenotypic effects, traits why genes are called blueprints for our body.