Question

based on figure 2, which mutation most likely provides better resistance to ddt?
a. mutation 1, because selection due to ddt treatment pressured mutation 2 to evolve to use the same mechanism
b. mutation 1, because selection as a result of ddt treatment resulted in a higher frequency of that mutation
c. mutation 2, because selection due to ddt treatment allowed bedbugs with that mutation to migrate farther west
d. mutation 2, because selection as a result of ddt treatment resulted in a lower frequency of that mutation

Explanation:

In evolutionary biology, a mutation that becomes more frequent in a population due to selective pressure (like DDT treatment) is likely to confer a survival - advantage. If mutation 1 has a higher frequency as a result of DDT treatment, it is more likely to provide better resistance to DDT.

Answer:

B. Mutation 1, because selection as a result of DDT treatment resulted in a higher frequency of that mutation