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Understanding the Global Probability of Having Blue Eyes in 2026

"The human eye color spectrum is a complex interplay of genetics, population migration patterns, and evolutionary biology. When investigating the prevalence of blue eyes, it is essential to distinguish between localized European concentrations and the global phenotype distribution. As of 2026, scientific consensus maintains that blue eye color is a recessive trait primarily linked to a specific mutation in the HERC2 gene, which regulates the OCA2 gene responsible for melanin production in the iris. Evolutionary Origins and Global Demographic Distribution The genetic origin of blue eyes is traced back to a single common ancestor who lived appro..."

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