Make a list of all the percent identity values from the table, starting with 100% at the top. Next to each number write the globin pair(s) with that percent identity value. Use one color for the globins from the α family and a different color for the globins from the β family.
a. Compare the order of pairs on your list with their positions in the model shown in Figure 21.14. Does the order of pairs describe the same relative "closeness" of globin family members seen in the model?