Human Heredity 7e Chapter 19: Population Genetics and Human Evolution Learning Objectives At the completion of this chapter, you should have an understanding of: a. the population as a reservoir of genetic information, and as the unit of study in population genetics. b. the Hardy-Weinberg Law. c. the use of Hardy-Weinberg Law in the measurement of allele frequencies and heterozygote frequencies. d. the role of mutation in generating genetic variability. e. the effects of genetic drift and natural selection in changing allele frequencies. f. the use of allele frequencies to measure gene flow between populations. g. the definitions of race and why most experts feel there are no human “races.” h. the genetic, archaeological, and anthropological evidence of origins of modern human populations.