The difference between dominant and advantageous | EvolutionExamples

Dominant and advantageous are two terms used to describe alleles, but they are often confused by students first learning population genetics.

Dominant alleles cause the phenotype in both homozygotes and heterozygotes whereas recessive alleles only cause the phenotype in homozygotes.

Co-dominant or additive alleles result in three different phenotypes, each homozygote and the heterozygote.

Advantageous refers to the fitness of an allele and is not always associated with the degree of dominance of the allele.

If you've wondered, what is the difference between dominant and advantageous, this video should help answer that question for you.

#PopulationGenetics #popgen #EvolutionExamples

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