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Researched1942 · Machine Age (1900 – 1945)

Life / Biology & Genetics

Modern evolutionary synthesis

In the 1930s-40s population genetics fused Darwin's selection with Mendel's genes into one theory of evolution.

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Ronald Fisher, J.B.S. Haldane and Sewall Wright showed mathematically in the 1920s-30s that natural selection acting on Mendelian genes can drive evolution; Theodosius Dobzhansky, Ernst Mayr, George Gaylord Simpson and others added field and fossil evidence. Julian Huxley's book 'Evolution: The Modern Synthesis' (1942) gave the result its name. Evolution now had a clear mechanism, and genes became the unit of inheritance to be studied.

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