Have any been selected against?
Post-Lab Questions
1. What is the remaining ratio of alleles?
2. Have any been selected against?
3. Given enough generations, would you expect one of these alleles to completely disappear from the population? Why or why not?
4. Would this be different if you started with a larger population? Smaller?
5. After hundreds or even thousands of generations both alleles are still common in those of African ancestry. How would you explain this?
6. The worldwide distribution of sickle gene matches very closely to the worldwide distribution of malaria (Figure 7). What is the significance of this?