Human Genetic Variation

Human genetic variation refers to the differences in DNA sequences among individuals. These variations influence traits like eye color, height, and disease susceptibility. They occur naturally through mutations, recombination, and gene flow. While most of our DNA is similar, small differences contribute to diversity within the human population. Understanding this variation helps scientists study human health, evolution, and how populations are related. It’s a fundamental aspect of biology that explains why no two people, except identical twins, are exactly alike.