🐰 Hardy-Weinberg principle (CCEA)


How could we keep track of the frequency of each allele for a given trait when we have a dominant-recessive interaction? More specifically, how could we account for the visible dominant traits as homozygous or heterozygous, since both look the same?

This is where the Hardy-Weinberg principle comes in. Firstly, there are criteria for when this principle may be applied to a population:

Random mating must take place.
No migration must occur either inwards or outwards of the population.
No mutations must arise in the population.
Β No natural selection must take place due to one trait being better or worse adapted to the environment.

It’s apparent that this is simply rarely, if ever, the case in a real wild population. However, the Hardy-Weinberg principle is useful at predicting allele frequencies in a reliable mathematical…