Editing Polymorphism (biology) (section)

== Relative frequency ==

Endler's survey of natural selection gave an indication of the relative importance of polymorphisms among studies showing natural selection.<ref>Endler J.A. 1986. ''Natural Selection in the Wild'', pp. 154–163 (Tables 5.1, 5.2; Sects. 5.2, 5.3). Princeton: Princeton U. Press.</ref> The results, in summary: Number of species demonstrating natural selection: 141. Number showing quantitative traits: 56. Number showing polymorphic traits: 62. Number showing both Q and P traits: 23. This shows that polymorphisms are found to be at least as common as continuous variation in studies of natural selection, and hence just as likely to be part of the evolutionary process.{{citation needed|date=February 2023}}