Population Genetics · Zoology

Allele frequency refers to the:

  1. Proportion of heterozygous individuals in a population
  2. Number of alleles per gene
  3. Relative abundance of an allele in a population
  4. Rate of mutation of an allele
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Correct answer: Relative abundance of an allele in a population

Allele frequency measures how common a particular allele is relative to other alleles of the same gene. It is expressed as a proportion of all alleles at that locus.

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