Beanbag genetics is a conceptual model of genetics which was used by early Mendelians, who used to keep colored beans in bags as a way of tracking Mendelian ratios, which British-born scientist known for his work in the study of physiology, genetics, evolutionary biology, and in mathematics, where he made innovative contributions to the fields of statistics and biostatistics, and who treated genes as independent entities to simplify their mathematical analysis of population genetics?
Beanbag genetics:  Phrase was first coined by Ernst Mayr in criticizing the work of Ronald Fisher and J. B. S. Haldane who treated genes as independent entities to simplify their mathematical analysis of population genetics. J. B. S. Haldane: John Burdon Sanderson Haldane ( ; 5 November 1892 – 1 December 1964) was a British-born scientist known for his work in the study of physiology, genetics, evolutionary biology, and in mathematics, where he made innovative contributions to the fields of statistics and biostatistics.
J. B. S. Haldane