The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
What does the Hardy-Weinberg principle State quizlet?
what does the hardy-weinberg principle state? the Hardy-Weinberg principle states that allele frequencies in a population should remain constant unless one or more factors cause those frequencies to change.
What are the 5 conditions of the Hardy-Weinberg principle?
There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection. If the assumptions are not met for a gene, the population may evolve for that gene (the gene’s allele frequencies may change).
What is the Hardy-Weinberg principle and why is it important?
The Hardy-Weinberg model can also be applied to the genotype frequency of a single gene. Importance: The Hardy-Weinberg model enables us to compare a population’s actual genetic structure over time with the genetic structure we would expect if the population were in Hardy-Weinberg equilibrium (i.e., not evolving).
What is the significance of the Hardy-Weinberg equilibrium quizlet?
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The significance of Hardy-Weinberg equilibrium is that there in no evolution and no change in allele frequency. Populations in nature do not meet the conditions of Hardy-Weinberg equilibrium, as all biological populations evolve.
Which condition would disturb the Hardy-Weinberg equilibrium?
The Hardy-Weinberg equilibrium can be disrupted by deviations from any of its five main underlying conditions. Therefore mutation, gene flow, small population, nonrandom mating, and natural selection will disrupt the equilibrium.
How does mutation violate the Hardy Weinberg principle?
No mutation: If new alleles are produced by mutation or if alleles mutate at different rates, allele frequencies may change from one generation to the next. No migration: Movement of individuals in or out of a population alters allele and genotype frequencies. No chance events: Luck plays no role in HWE.
What do PQ p2 2pq and q2 represent?
p2 +2pq + q2 = 1 Where p2 represents the frequency of the homozygous dominant genotype, q2 represents the frequency of the recessive genotype and 2pq is the frequency of the heterozygous genotype.
Why is there a 2 in 2pq?
The term p2 represents the frequency of dominant homozygotes (AA) and the term q2 represents the frequency of recessive homozygotes (aa). p represents the allele frequency of allele A, and q represents the allele frequency of the allele a.
Why is random mating important to Hardy-Weinberg?
If allele frequencies differ between the sexes, it takes two generations of random mating to attain Hardy-Weinberg equilibrium. Sex-linked loci require multiple generations to attain equilibrium because one sex has two copies of the gene and the other sex has only one.