Human genetics determines multiple personality and physical characteristics, including ones eye color and hair color and other unique physical features. This paper will explore biological development related to three personal biological related life events: my hair color which is dark brown like my fathers, a facial dimple that mimics my father's features and my eye color which also takes after my father. The objective is to explain how I likely inherited each of these traits given the nature of human development and genetics. .

             While one might assume that the offspring of two people should result in an average compilation of the mother and father, this is very often not the case. DNA passes on from parents to children in unusual ways. A person's visible features also referred to as phenotype are determined during various stages of embryonic development (Modern Genetics, 8). There are multiple phenotypic combination that results when two parents come together, and various probabilities exist explaining whether certain traits are more dominant than others (Modern Genetics, 8; Rees, 87). With regard to the dimple, it does not matter whether the father or mother carried the dimple trait, in this case there are multiple phenotypes and genotypes that could have produced no dimple or the dimple. In this case my father likely carried a heterozygous dimple trait meaning he might contribute a certain allele that lead to my development of the same trait (Modern Genetics, 33). .

             Hair and eye color are determined similarly. Ultimately for a child to inherit a certain eye color they must first inherit an allele or set of genes containing this eye color from the parent. The same is true of other physical traits including hair color, or the predisposition toward dimpling or some other physical feature. Some people are also genetically predisposed to certain conditions, which may influence whether they demonstrate one or more physiological characteristics.