Genetic code refers to the combination of the genes (arranged in a specific sequence) that is the blueprint for who we can be. The genes are all independent units that can’t do very much. But, when they are combined into a big sequence or code, they produce and indicate who we can be.
BUT, it is important to know that having a certain genetic code does not necessarily mean that is who we will become. Rather, there is a difference between all the genes we have (genotype) and the genes that are actually expressed (phenotype). Plus, the environment is absolutely crucial in determining who we are and who we become.