Herbert Spencer Jennings : biography
Herbert Spencer Jennings (born in Tonica, Illinois, April 8, 1868; died in Santa Monica, California, April 14, 1947) was a zoologist, geneticist, and eugenicist. His research helped demonstrate the link between physical and chemical stimulation and automatic responses in lower orders of animals. Tracy Sonneborn would later write:Jennings was so struck by the continued production of hereditarily diverse clones at conjugation, even after many successive inbreedings, that he undertook to examine the matter mathematically. As a result, general formulae for the results of diverse systems of mating were published in a series of papers between 1912 and 1917; these were one of the main seeds from which the whole field of mathematical genetics developed.
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