We appreciate your visit to The Hardy Weinberg equilibrium mathematically shows that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Dominant allele frequencies are not necessarily larger or more common than recessive allele frequencies in a population because factors like mutations, natural selection, genetic drift, migration, and nonrandom mating can affect their prevalence irrespective of dominance or recessiveness.
The Hardy-Weinberg equilibrium describes a model where allele frequencies remain stable across generations in the absence of evolutionary forces. A dominant allele may not necessarily increase in frequency over a recessive allele simply because it's dominant. For example, if a recessive allele confers some selective advantage, or if it is introduced at a high frequency through gene flow, the recessive allele might be more common in the population.
According to the Hardy-Weinberg principle, allele and genotype frequencies are inherently stable unless some kind of evolutionary force acts on the population. When mutations occur, genetic drift affects small populations, individuals migrate, or the population experiences nonrandom mating, the equilibrium can be disrupted, leading to changes in allele frequencies over time. Therefore, it's misguided to assume that dominant alleles would invariably be more common than recessive alleles without considering the effects of these evolutionary mechanisms.
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