ANT203Y1 Lecture Notes - Lecture 5: Cystic Fibrosis, Population Genetics, Genetic Drift
Document Summary
Doesn"t necessarily include the whole species, just a small subset of the speices. Geographical population: based on distance generally the farther away they are from one another, the less likely they are to mate. More likely to meet people that are closer by to you boundaries can be problematic. For bears, the boundaries where their breeding zones meet, there is a lot of interbreeding that is taking place. Evolution does not happen with one individual. Macroevolution: if no interbreeding occurs, it will result in a speciation event. If the gene frequencies change, we know that something is changing and influencing those frequencies. Cystic fibrosis: high in european populations (people that have cf don"t tend to suffer from tb: possible that cf got selected for because of the fitness that it provided for tuberculosis. In the picture: white gets selected out (harmful) **genetic drift and gene flow change the frequencies of what already exists in genes.
