Evolution: The pattern of natural selection

Identify the pattern of natural selection going on in a population based on the most frequently seen
phenotype(s): directional, stabilizing, and disruptive selection.
Predict how phenotype frequencies would be expected to change with either a change in environment or the
introduction of a new, favorable mutation.
Relate the example given in the prompt to the four principles of natural selection-- be able to "walk through" the
process by which a population evolves over a period of time.