BIOLOGY 1M03 Lecture Notes - Brain Size
13 Mar 2013
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Document Summary
Modern humans evolved in africa 200 kya to 100 kya and 60kya migrated from africa to various parts of the world. Shared a number of derived characteristics that were not present with other hominins. Sequencing of genomes gives info on genetic differences. Initially differences judged on morphological and fossil records, but molecular provides new information on how humans differ genetically from closest relative chimpanzee. Human and chimpanzees differ genetically about 1. 6%, but again there are 3 billion genes, so this is still significant. Protein coding genes differed, responsible for the differences in phenotype.
