Queen's Quarterly, March 22nd, 1999
In his later years, Charles Darwin's closest professional relationship was with George John Romanes, to whom he entrusted the burden of his life's work. Four years after Darwin's death, Romanes published a theory of the origin of species by means of "physiological selection." This resolved the major problems in Darwin's theory, but replaced them with a "peculiarity" of the reproductive system which would allow selective fertility between "physiological complements." To most of his contemporaries, and those who came afterwards, this did not convey much. However, bioinformatic analysis of DNA se...
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