An Introduction To Population Genetics Theory Pdf 2021

Traditional genetics focuses on how traits pass from individual parents to their offspring. Population genetics expands this lens to look at the entire group. Instead of tracking single family pedigrees, it tracks the frequencies of alleles (gene variants) and genotypes across an entire breeding population over multiple generations. The Modern Synthesis

Before GPS, before "ancestry.com," Kimura imagined populations arranged on a grid, exchanging migrants only with neighbors. This model of isolation-by-distance explains why human genetic variation looks like a smooth cline from Africa to Siberia, not sharp tribes. Your "race" is just a gradient in the stepping-stone model. an introduction to population genetics theory pdf