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Gregor Johann Mendel[grA´gOr yO´hAn men´dul] Pronunciation Key, 1822–84, Austrian monk noted for his experimental work on heredity. He entered the Augustinian monastery in Brno in 1843, taught at a local secondary school, and carried out independent scientific investigations on garden peas and other plants until his election as prelate in 1868. Failing eyesight and his duties as prelate somewhat curtailed his researches; although he anticipated Oscar Hertwig's discovery that fertilization of an egg involved only one male sex cell, these findings went unpublished.
Mendel was the first to fashion, by means of a controlled pollination technique and careful statistical analysis of his results, a clear, analytic picture of heredity. His account of the experiments and his conclusions, published in 1866 (tr. Experiments in Plant Hybridization, 1926), were ignored during his lifetime. Rediscovered by three separate investigators (Correns, De Vries, and Tschermak) in 1900, Mendel's conclusions have become the basic tenets of genetics and a notable influence in plant and animal breeding.
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