HSCI 324 Lecture 1: 324 lecture 1-6
14 Apr 2016
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Document Summary
Genetic and human evolution is a multidisciplinary field that is continuous evolving. To obtain fuller picture of past history often using multiple records from multidisciplinary fields is desirable. Food, bones, and stones: geology, anthropology, radiology, geography, dietary studies. Different fields of expertise are useful to shed light on evolutionary time points. Worldwide distribution of proto-languages: most recent common ancestor of all the world"s languages. Interpretation of phylogenetic tress: humans and chimpanzees shared a common ancestor that is not around today. Timeline of major advances in human evolutionary genetics. First genetic polymorphism -> abo blood groups 1900: dna shown to be heritable material -> 1994, double-helical structure of dna described -> 1953. 5 my timescale for hominid evolution published -> 1967. First human rflps described -> 1978: human mtdna genome sequenced -> 1981. First y-chromosomal polymorphism -> 1985: release of draft human genome sequence -> 2001. 220-120 kya most recent common ancestor of extant mtdnas.
