BIO 115 Lecture Notes - Lecture 29: Genetic Drift, Genetic Distance, Cocos Finch
Document Summary
Each nucleotide base is a potentially informative character. Similarity in nucleotide bases that is not due to ancestral history. Slowly evolving genes useful for distantly related species. Rapidly evolving genes useful for closely related lineages. Finds most likely tree given specific model of molecular evolution. Looks at probability that a tree is correct given a specific model of. Create a matrix from the neighbour joining. Dots are placed where they"re matched identically. Phylogenetic trees are hypotheses that are constantly re-evaluated when new data. Statistical models help scientists sift through molecular evidence to determine the becomes available best hypothesis or hypotheses that explain the data. Different species of darwin"s species should have closest relatives elsewhere. Diversification of the finches across the island. Cocos finch should be closest relative of all darwin"s finches. A few reasons why we see a biogeographic pattern in regard to species location.
