Why bother with the Hardy Weinberg Formula when most populations in nature don meet genetic equilibrium?
Hardy-Weinberg has practical uses. It does not only identify populations in “equilibrium.” Pretend you are doing population studies on cities and would like to know the distribution of the cystic fibrosis allele in the populations of different cities. Knowing how many cases there are of cf in a city with a population of N people would allow you to calculate the prevalence of the “bad” allele in the population as a whole…
