BIO120H1 Lecture Notes - Lecture 7: Genetic Drift, Gene Flow, Genetic Marker

• School: UTSG
• Department: Biology
• Course: BIO120H1
• Professor: Spencer Barrett

Document Summary

Lecture 7 population structure, gene flow and genetic drift. Reducing wing size might be better for diving and catching fish. Wright saw an important role for population structure and genetic drift in evolution. Fisher argued that most evolution occurred in large populations by natural. Genetic drift is just a random process. Fisher is largely correct with some exceptions that supports right. Example: north- versus south-facing slopes have different microclimates. A group of individuals of a single species occupying a given area at the same time. Plant have a dual population system (seed bank) To estimate the population size you need to know how many are above/ underground. The movement of individuals from one population to another. The movement of genes from one population to another. Key questions for evolutionary studies of variation within populations. We know that there are lots of distinction within population. Buet we can"t classify them as different species!