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## Why does the Hardy-Weinberg equation not generally apply to real world populations?

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 violates Hardy-Weinberg equilibrium?

**Selection, mutation, migration**, and genetic drift are the mechanisms that effect changes in allele frequencies, and when one or more of these forces are acting, the population violates Hardy-Weinberg assumptions, and evolution occurs.

## Why is the Hardy-Weinberg equilibrium 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.

## Why Hardy-Weinberg equilibrium is important?

The Hardy-Weinberg Equilibrium (HWE) is an important fundamental principal of population genetics, which states that “**genotype frequencies in a population remain constant between generations in the absence of disturbance by outside factors**” (Edwards, 2008).

## Which one of the following would cause the Hardy-Weinberg principle to be inaccurate?

. Which one of the following would cause the Hardy-Weinberg principle to be inaccurate? **frequencies**, e.g., rgd (random genetic drift), natural selection, gene flow, nonrandom mating.

## What causes Hardy-Weinberg equilibrium deviation?

In a small population, **the sampling of gametes and fertilization to create zygotes causes random error in allele frequencies**. This results in a deviation from the Hardy-Weinberg Equilibrium. This deviation is larger at small sample sizes and smaller at large sample sizes.

## How do you know if it’s in Hardy-Weinberg equilibrium?

To know if a population is in Hardy-Weinberg Equilibrium scientists **have to observe at least two generations**. If the allele frequencies are the same for both generations then the population is in Hardy-Weinberg Equilibrium.