ANT 120 Lab 1: The Forces of Evolution There are four mechanisms that can lead to evolutionary change from one generation to the next: mutation natural selection, gene flow, and genetic drift. In this laboratory exercise we will examine the action of genetic drift and natural selection. The key difference between these two mechanisms, which can be difficult to get a handle on without direct experimentation, is that natural selection privileges some individuals over others on the hasis of their biological traits while genctic drift privileges some individuals over others with no regard to theis biological traits Dala Table for Genetic Drift Experiment Frequency of black beetles (alleles) 10 Round10.5 Round 2 Data Table for Natural Selection Experiment Frequency of black beetles (alleles) 0 1 2 3 5 67 8 9 10 Generation Green Forest oS .22 21 Black dirt 0.5 After tabulating your data, answer the questions on the other side of this sheet.