CGS NS 201 Lecture Notes - Lecture 6: Erasmus Darwin, Zoonomia, Organism
6 Apr 2016
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Lecture 7: diversity, genetics, and beginnings of evolutionary though. Tienne geoffroy st. hilaire (1772-1844: looked at structure and morphology of skeleton. Developed rules for deciding when structures in two different organisms were variants of the same type: example: homologous traits. Believed all vertebrates arose form on archetype. Georges buffon (1707-1788: mathematician/naturalist who worked on species classification, speculated that species could have descent with modification, via: environmental change, migration, geographical isolation. Laws of organic life (1794-1796: thought species evolved by competition. Proteins large biomolecules consisting of long chains of amino acids. Proteins differ from one another primarily in their sequence of amino acids: sequence is dictated by the nucleotide sequence of their genes, which results in the protein folding into a specific 3d structure. A linear chain of amino acids is called a polypeptide: any protein contains at least one long polypeptide, the nucleotide sequence is contained in the genetic code contained in dna.
