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## How is the Hardy-Weinberg principle a null hypothesis?

In what sense is the Hardy-Weinberg principle a null hypothesis? It **defines that genotype and allele frequencies should be expected if evolutionary processes and nonrandom mating are not occurring**.

## What do the Hardy-Weinberg equations represent?

The Hardy-Weinberg equation states that **the frequency at which a specific genotype occurs can be expressed as a ratio of the genotype in question to the total number of alleles in the population**. The terms of this equation are defined as follows: p = the frequency of the dominant allele in a population.

## Why do you think Hardy-Weinberg theory Cannot work in the natural world?

The HW equilibrium is used as a null hypothesis; genotypes occur in predicable frequencies and allele frequencies do not change over time. Hence, (generically) evolution is not occurring. … Actually, **the Hardy-Weinberg equilibrium cannot exist in real life**.

## What are the 5 principles of the Hardy-Weinberg equilibrium?

There are five basic Hardy-Weinberg assumptions: **no mutation, random mating, no gene flow, infinite population size, and no selection**.

## How does Hardy-Weinberg calculate allele frequency?

To calculate the allelic frequencies we simply **divide the number of S or F alleles by the total number of alleles**: 94/128 = 0.734 = p = frequency of the S allele, and 34/128 = 0.266 = q = frequency of the F allele.

## Which of the terms of the Hardy-Weinberg equations represents the frequency of the recessive allele in the gene pool?

Explanation: In the Hardy-Weinberg equilibrium equation ( p2+2pq+q2=1 ), the term 2pq represents the genotype frequency of heterozygotes (Aa) in a population in equilibrium. The term p2 represents the frequency of dominant homozygotes (AA) and the term **q2** represents the frequency of recessive homozygotes (aa).

## Why is the Hardy Weinberg equation useful?

is incredibly useful because it **describes mathematically the genetic product of a population in which all individuals are equally likely to survive and to produce surviving offspring**. Specifically, it calculates the genotype frequencies that will be observed in a population that is not evolving.

## What phenomenon would violate the conditions for 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.

## Which statement is a reason that modern human populations never reach Hardy-Weinberg equilibrium?

Which statement is a reason that modern human populations never reach Hardy-Weinberg equilibrium? **Evolution rarely occurs in human populations.** **Mating is random in human populations.**