ANTH 2 Chapter Notes - Chapter 3: Microevolution, Speciation, Cladogenesis
29 Aug 2020
School
Department
Course
Professor
Document Summary
Challenged catastrophism by suggesting species can become modified over time to suit their environment. Individual animals physically transformed to adapt and passed those on. Uniformitarianism : geologic changes (erosion) are the result of the accumulation of small changes over long periods of time. Challenged ussher"s age of earth (6000 years) and catastrophism. Differential survival; not all who are born survive due to limited resources. Malthus" essay influenced charles darwin in developing natural selection. Based on the struggle to survive and reproduce. Gregor mendel (1822-1884: a friar and scientist who experimented with pea plant variation. Mendelian inheritance: parental genes do not blend in their offspring (pangenesis) Law of independent assortment: seed shape and seed color sorted independently and did not influence each other. Watson and crick 1953 published on the double-helix structure of dna based on the work of 4 people: rosalind franklin. Cell nucleus chromosome dna. Genotype: the alleles you have for a particular trait.
