Hardy-Weinberg believed that evolution occurs because the frequency of alleles changes. … The p’s represent the frequency of the A allele and the q represents the frequency of the a allele in a diploid individual.

## How do you interpret the p value in Hardy-Weinberg equilibrium?

A p-value of **0.02** means that there is a 2% probability that the genotype differences are due to chance and 98% chance that they are not due to chance. This p-value is significant, the null hypothesis is rejected, and we say that the population is not in Hardy-Weinberg equilibrium.

## Why is Hardy-Weinberg not realistic?

Explanation: All of the answer choices are assumptions made when considering Hardy-Weinberg equilibrium. Thus, **the model is not very realistic in nature**, since these conditions are rarely met. Also, no natural selection is assumed to occur.

## Why is the Hardy-Weinberg model useful?

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).