BIOS 3300 Lecture Notes - Lecture 3: Theodosius Dobzhansky, Population Genetics, Louis Pasteur

• School: Ohio University
• Department: Biological Sciences
• Course: BIOS 3300
• Professor: morris

Document Summary

Views of natural world begin to change: geology. Cuvier - paleontology - the study fossils. The stage before darwin: earth is old, extinction, fossils similar to extant forms. 4(cid:895) la(cid:373)ar(cid:272)k"s principle of adaptation: a principle of evolution. 1831-1836 - voyage of the beagle, dar(cid:449)i(cid:374)"s o(cid:374)ly field trip. Wrote his first manuscript on natural selection in 1844 - not published. In 1858, alfred wallace sent to darwin a manuscript that described natural selection. Encouraged by lyell and hooker - darwin published the origin of species in 1859. O(cid:374)ce me(cid:374)del"s (cid:449)ork (cid:449)as redisco(cid:448)ered, lau(cid:374)ched the development of population genetics. Modern synthesis: population genetics and natural selection combine to explain micro and macro evolution. (cid:862)ge(cid:374)etics a(cid:374)d origi(cid:374) of pecies(cid:863) by t. g. dobzhansky 1937. I(cid:373)pa(cid:272)t of dar(cid:449)i(cid:374)"s work: many separate observations supported by a single explanation, provided a dynamic view of species, man no longer at the pinnacle of life. 4(cid:895) (cid:272)lassifi(cid:272)atio(cid:374) of orga(cid:374)is(cid:373)s alo(cid:374)g e(cid:448)olutio(cid:374)ary li(cid:374)es still working on this!