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Which factors can affect Hardy-Weinberg equilibrium?

Which factors can affect Hardy-Weinberg equilibrium?

The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow. For instance, mutations disrupt the equilibrium of allele frequencies by introducing new alleles into a population.

What are 5 factors that can shift allele frequencies away from the predicted Hardy-Weinberg equilibrium?

They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.

Which are the four most important evolutionary forces which will disrupt the Hardy-Weinberg equilibrium?

The four most important evolutionary forces, which will disrupt the equilibrium, are natural selection, mutation, genetic drift, and migration into or out of a population.

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Do genotype frequencies change in Hardy-Weinberg equilibrium?

if the allele frequencies in a population with two alleles at a locus are p and q, then the expected genotype frequencies are p2, 2pq, and q2. This frequency distribution will not change from generation to generation once a population is in Hardy-Weinberg equilibrium.

How does mutation influence Hardy-Weinberg equilibrium?

One of the conditions that must be met for Hardy-Weinberg equilibrium is the absence of mutations in a population. Mutations are permanent changes in the gene sequence of DNA. These changes alter genes and alleles leading to genetic variation in a population. Mutations may impact individual genes or entire chromosomes.

Which of the following is a violation of the Hardy-Weinberg equilibrium?

One of the violations of Hardy-Weinberg equilibrium is selective mating. If birds prefer to mate with others that are similarly colored, then Hardy-Weinberg equilibrium is violated and the gene pool in the population is changing.

What are the 4 main forces that drive evolution?

Today, we recognize that evolution takes place through a combination of mechanisms: mutation, genetic drift, gene flow, and natural selection. These mechanisms are called the “forces of evolution” and together they can account for all the genotypic variation observed in the world today.

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How do forces in nature lead to evolutionary change?

Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool.

How can mutation change the genetic pool?

The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism’s DNA that create diversity within a population by introducing new alleles.

Which circumstance violates the conditions of the Hardy-Weinberg model?

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.

What 2 forces of evolution are random?

There are four forces of evolution: mutation, gene flow, genetic drift, and natural selection. A mutation is a random change in a gene or chromosome that can make for a physical or behavioral difference in an individual. Because it starts with a change in a gene or chromosome, it can be passed on to future generations.