About This Lesson
The "Pre" extension creates programming to ask the user for values that are needed to figure out the frequency of individuals showing the recessive trait - the one number needed to calculate all the other frequencies. The frequency of individuals showing the recessive trait is the only one that can be observed in a population BUT it is not always given in the word problem.
The "Post" extension will take the frequencies and apply them to an actual population number to generate actual numbers of individuals of the 3 genotypes and numbers of each allele … in that population.
