Human Phenotypic Variation

Human phenotypic variation refers to the differences in physical traits and characteristics among individuals, such as height, eye color, hair type, and skin tone. These differences arise from the combination of genes inherited from parents and environmental factors like diet or climate. While many traits are influenced by multiple genes, some are determined by a single gene. Understanding this variation helps explain why people look and behave differently, highlighting the rich diversity within our species. It is a natural part of human biology, reflecting the complex interplay of genetics and environment.