Journal of Genetics

, 55:511 | Cite as

The cost of natural selection

  • J. B. S. Haldane


Unless selection is very intense, the number of deaths needed to secure the substitution, by natural selection, of one gene for another at a locus, is independent of the intensity of selection. It is often about 30 times the number of organisms in a generation. It is suggested that, in horotelic evolution, the mean time taken for each gene substitution is . about 300 generations. This accords with the observed slowness of evolution.


Natural Selection Parental Population Reproductive Capacity Gene Substitution Selective Death 
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Copyright information

© Indian Academy of Sciences 1957

Authors and Affiliations

  • J. B. S. Haldane
    • 1
    • 2
  1. 1.University CollegeLondon
  2. 2.Indian Statistical InstituteCalcutta

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