Some larval fruit flies (D. melanogaster), "rovers," move around continually on their food source and often leave one food source to look for another. Others, "sitters," travel only short distances and tend to remain on a single food source. Further, the differences in foraging activity have been determined to be related to differences in the enzyme PKG. These findings were based on which of the following methodologies?
A) artificial selection studies
B) comparisons of inbred strains
C) finding natural variants and looking for genetic differences
D) inducing mutations and screening for changes in behavior

Question

Quizplus · Accepted Answer

The correct answer is based on identifying natural variants (rovers and sitters) in the population and then looking for genetic differences between them, which led to the discovery of differences in the enzyme PKG related to their foraging behavior.

Some Larval Fruit Flies (D