Imagine that you are designing an experiment aimed at determining whether the initiation of migratory behavior is largely under genetic control. Of the following options, the best way to proceed is to
A) observe genetically distinct populations in the field and see if they have different migratory habits.
B) perform within-population matings with birds from different populations that have different migratory habits. Do this in the laboratory and see if offspring display parental migratory behavior.
C) bring animals into the laboratory and determine the conditions under which they become restless and attempt to migrate.
D) perform within-population matings with birds from different populations that have different migratory habits. Rear the offspring in the absence of their parents and observe the migratory behavior of offspring.
E) All of the above are equally productive ways to approach the question.
Answer: D