ABSTRACT

Evolution theory depends on attributes that lead to success being passed from one generation to another. Genes are composed of deoxyribonucleic acid and are the smallest units of hereditary material. A ‘genetic population’ is a community of a sexually reproducing species in which the individuals share a common gene pool. In nature, genetic characteristics are passed on to offspring and will differ according to the dominance or recessiveness of certain genes, or to mutation in genes which may be beneficial threatening to the survival of the organism or both. The human genome is the entire array of gene-bearing DNA sequences contained in a human cell. In other words, it is what dictates the physical nature of the human individual. Genetic engineering is, in essence, cutting out chromosomes in one organism and splicing them into the chromosomes of another. Genetic engineering leads to the mass production of protein-based chemicals that would otherwise be scarce.