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Fisher's principle is rooted in the concept of frequency-dependent selection, though Fisher's principle is not frequency-dependent selection per se. Frequency-dependent selection, in this scenario, is the logic that the probability of an individual being able to breed is dependent on the frequency of the opposite sex in relation to its own sex.
European pied flycatcher Ronald Fisher in 1912. The sexy son hypothesis in evolutionary biology and sexual selection, proposed by Patrick J. Weatherhead and Raleigh J. Robertson of Queen's University in Kingston, Ontario in 1979, [1] states that a female's ideal mate choice among potential mates is one whose genes will produce males with the best chance of reproductive success.
Fisher's fundamental theorem of natural selection is an idea about genetic variance [1] [2] in population genetics developed by the statistician and evolutionary biologist Ronald Fisher. The proper way of applying the abstract mathematics of the theorem to actual biology has been a matter of some debate, however, it is a true theorem.
The peacock tail in flight, the classic example of an ornament assumed to be a Fisherian runaway. Fisherian runaway or runaway selection is a sexual selection mechanism proposed by the mathematical biologist Ronald Fisher in the early 20th century, to account for the evolution of ostentatious male ornamentation by persistent, directional female choice.
Ronald Fisher with his sons. Fisher married Eileen Guinness, with whom he had two sons and six daughters. [42] His marriage disintegrated during World War II, and his older son George, an aviator, was killed in combat. [111] His daughter Joan, who wrote a biography of her father, married the statistician George E. P. Box. [112]
The Sir John Fisher Foundation is a charitable trust established in 1980 by Sir John Fisher and his wife Lady Maria Fisher, in order to support good causes in the area surrounding the company's headquarters in Barrow-in-Furness. The foundation's capital fund includes its shareholding in James Fisher and Sons plc.
Henrietta Lacks (born Loretta Pleasant; August 1, 1920 – October 4, 1951) [2] was an African-American woman [5] whose cancer cells are the source of the HeLa cell line, the first immortalized human cell line [B] and one of the most important cell lines in medical research. An immortalized cell line reproduces indefinitely under specific ...
Max M. Fisher College of Business, part of the Ohio State University; Fisher Communications; Fisher F.C., a football club in England; Fisher Electronics, a Sanyo subsidiary producing hi-fi equipment The Fisher (electronics manufacturer), a line of electronics marketed by Avery Fisher and predecessor to Fisher Electronics