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  2. Haldane's dilemma - Wikipedia

    en.wikipedia.org/wiki/Haldane's_dilemma

    Apparently the first use of the term "Haldane's dilemma" was by paleontologist Leigh Van Valen in his 1963 paper "Haldane's Dilemma, Evolutionary Rates, and Heterosis". Van Valen writes: [8] Haldane (1957 [= The Cost of Natural Selection]) drew attention to the fact that in the process of the evolutionary substitution of one allele for another ...

  3. Haldane's rule - Wikipedia

    en.wikipedia.org/wiki/Haldane's_rule

    In humans, barring intersex conditions causing aneuploidy and other unusual states, it is the male that is heterogametic, with XY sex chromosomes.. Haldane's rule is an observation about the early stage of speciation, formulated in 1922 by the British evolutionary biologist J. B. S. Haldane, that states that if — in a species hybrid — only one sex is inviable or sterile, that sex is more ...

  4. J. B. S. Haldane - Wikipedia

    en.wikipedia.org/wiki/J._B._S._Haldane

    Haldane was the first to have thought of the genetic basis for human cloning, and the eventual artificial breeding of superior individuals. For this he introduced the terms "clone" and "cloning", [ 113 ] modifying the earlier "clon" that had been used in agriculture since the early 20th century (from Greek klōn , twig).

  5. Neutral theory of molecular evolution - Wikipedia

    en.wikipedia.org/wiki/Neutral_theory_of...

    Haldane's dilemma regarding the cost of selection was used as motivation by Kimura. Haldane estimated that it takes about 300 generations for a beneficial mutation to become fixed in a mammalian lineage, meaning that the number of substitutions (1.5 per year) in the evolution between humans and chimpanzees was too high to be explained by ...

  6. Population genetics - Wikipedia

    en.wikipedia.org/wiki/Population_genetics

    The work of Fisher, Haldane and Wright founded the discipline of population genetics. This integrated natural selection with Mendelian genetics, which was the critical first step in developing a unified theory of how evolution worked. [4] [5] John Maynard Smith was Haldane's pupil, whilst W. D. Hamilton was

  7. Kin selection - Wikipedia

    en.wikipedia.org/wiki/Kin_selection

    Haldane's remark alluded to the fact that if an individual loses its life to save two siblings, four nephews, or eight cousins, it is a "fair deal" in evolutionary terms, as siblings are on average 50% identical by descent, nephews 25%, and cousins 12.5% (in a diploid population that is randomly mating and previously outbred). But Haldane also ...

  8. Objections to evolution - Wikipedia

    en.wikipedia.org/wiki/Objections_to_evolution

    Objections to evolution have been raised since evolutionary ideas came to prominence in the 19th century. When Charles Darwin published his 1859 book On the Origin of Species, his theory of evolution (the idea that species arose through descent with modification from a single common ancestor in a process driven by natural selection) initially met opposition from scientists with different ...

  9. Category:Works by J. B. S. Haldane - Wikipedia

    en.wikipedia.org/wiki/Category:Works_by_J._B._S...

    Pages in category "Works by J. B. S. Haldane" The following 6 pages are in this category, out of 6 total. ... Haldane's dilemma; Haldane's rule; O. On Being the Right ...

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