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Learn Introductory plant breeding with Braimy- B.Sc agriculture
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  • For instance, mutations disrupt the equilibrium of allele frequencies by introducing new alleles into a population.
  • Similarly, natural selection and nonrandom mating disrupt the Hardy-Weinberg equilibrium because they result in changes in gene frequencies.
  • This occurs because certain alleles help or harm the reproductive success of the organisms that carry them.
  • Another factor that can upset this equilibrium is genetic drift, which occurs when allele frequencies grow higher or lower by chance and typically takes place in small populations.
  • Gene flow, which occurs when breeding between two populations transfers new alleles into a population, can also alter the Hardy-Weinberg equilibrium.
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