Genetic Variation
Genetic variation refers to the differences in DNA sequences among individuals within a population, encompassing mutations, alleles, and other genetic changes that drive biological diversity. This concept is fundamental to evolution and adaptation, influencing everything from species survival to human health innovations, and in modern contexts, it's analyzed through tools like genome sequencing to address issues like disease susceptibility and biodiversity loss.
Did you know?
Despite humans sharing about 99.9% of their DNA, the remaining 0.1% genetic variation accounts for all the physical and behavioral differences among us, including traits like height and disease risk, as revealed by the Human Genome Project completed in 2003. This tiny fraction has enabled humanity to adapt to diverse environments, from high altitudes to tropical climates, and is why no two people—except identical twins—have identical genetic makeups.
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