Electrophoretically silent alleles in a finite population

Masatoshi Nei, Ranajit Chakraborty

Research output: Contribution to journalLetterpeer-review


The expected number of silent alleles in an electromorph is computed for various values of population size (N), mutation rate (u), and sample size (s) under the assumption of no selection. The proportion of alleles undetectable by electrophoresis is higher when Nu is large than when this is small. It is shown that an electromorph of high population frequency has more silent alleles than an electromorph of low frequency if the sample size is the same.

Original languageEnglish
Pages (from-to)381-385
Number of pages5
JournalJournal of Molecular Evolution
Issue number4
StatePublished - Dec 1976


  • Electrophoresis
  • Protein Polymorphism


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