Hardy-Weinberg Equilibrium Report

We expect the genetic frequency of “A” and “a” to be constant based on Hardy-Weinberg Equilibrium. However, from the table I and graph of genetic drift, we find f(A) is increasing in the offspring and f(a) is decreasing in the offspring. We find small population size violates the Hardy-Weinberg Equilibrium rule. Table I and graph of genetic drift also bring into question whether the genetic drift would end up with an extinction or fixation of genes. This is further explained in the Table II and graph of natural selection as the allele “A” reaches 100%, fixed, while the allele “a” is down to 0%, and never drift up. “This is why very small population tends to lose genetic variation over time”(33 lab). This finding also “explain[s] why zoos go to so much trouble to exchange rare animals such as tiger or …show more content…
In our specific case, the recessive lethal gene will extinct, the population will no longer suffer from such disease. This shows “the likelihood of an individual surviving to maturity will be affected by its particular traits”(McFarland 33). It is such trait that enables the individual to survive through genetic diseases or even natural disasters. We can expand our discussion to the environment, which only those inheritable variations that best fit or adapt the animals to its environment will perpetuate (McFarland 34). By reading Joanna Masel’s article Genetic Drift, who uses average number to test genetic drift in natural selection, it inspires me that we might be able to improve the experiment by using the average numbers. For example, in each generation, instead of drawing one time, we can draw two or more times and take average of the data. In this way, the data we obtain will be more reliable considering the factor of large data outliners and