Why is the Hardy Weinberg equilibrium formula, which is used to calculate genotype and allele frequencies in a population, applied if the conditions that have to be considered (such as no evolution) to use the formula are difficult to obtain?

Question

Why is the Hardy Weinberg equilibrium formula, which is used to calculate genotype  and allele frequencies in a population, applied if the conditions that have to be considered (such as no evolution) to use the formula are difficult to obtain?

anonymous · Answer

It gives you a baseline of what should happen if there is no evolution occurring.  When populations do not fit the Hardy Weinberg, then you know they are changing (evolving).

dessyj1 · Answer

I see, thank you.