BIOL 204 Lecture Notes - Lecture 9: Omo Kibish Formation, Homo Erectus, Denisovan
3 Dec 2016
School
Department
Course
Professor
Document Summary
Closest relative chimpanzee differ 6 million years ago. 170,000 most common ancestor based on phylogenetic tree closest ones specific to africa. Africans have subset of african diversity more recent lineages. Africans have the oldest mtdna lineages and variability. This fact supports the hypothesis that they are the oldest populations (more time for mutations to occur)!!!! 190,200,000 years ago really small number (as small as 100) migrate out of africa (founder event). Lose genetic diversity (se asia and australia ) = 1st. Homo erectus got out of africa +around globe 2 million years ago. Neanderthal;- large brain, double arched eyebrowridges, broad nose, 2010- first draft dna from neanderthal find so similar to us at genetic level 92% changes of common ancestor same as neanderthal only 8% uniquely human. We are the last of hominin dispersal events out of africa. People from different geographical regions are genetically more similar to each other.
