[Ed. note: Thirty years ago, the eminent geneticist and statistician Ronald A. Fisher approached blood testing specialist Arthur Mourant with the idea for a joint research project. Why not use blood ...

after British statistician and population geneticist Ronald Fisher. Fisher's principle states that natural selection favors the genetic variant that increases the births of the rare sex.

When interactions involve more than two genetic loci, the limiting effects ... by a number of other researchers, including Ronald Fisher. Although Fisher recognized that nonadditive gene ...