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Nonrandom Mating

  1. Dennis H O'Neil

Published Online: 15 JUL 2006

DOI: 10.1038/npg.els.0005448



How to Cite

O'Neil, D. H. 2006. Nonrandom Mating. eLS. .

Author Information

  1. Palomar College, San Marcos, California, USA

Publication History

  1. Published Online: 15 JUL 2006


Nonrandom mating occurs when there is discrimination between potential mates and selection or rejection of them based on their phenotypical characteristics. This deviation from random mating results in predictable changes in genotype frequencies in subsequent generations.


  • nonrandom mating;
  • positive assortative mating;
  • negative assortative mating;
  • inbreeding;
  • consanguineous mating