BIOL 241 Lecture Notes - Lecture 20: Pleistocene, Phylogenetics, Thomas Robert Malthus
3 Apr 2016
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This section in a nutshell - themes 3-5 in dna to diversity. Theme 4: transmitting genes in individuals (mendel 4a) and populations (population genetics 4b), and beyond (speciation, 4c) Theme 3: what is evolution: where does biological diversity come from, what is evolution and how do we study it, where did the idea of evolution by natural selection come from. Where does biological diversity come from: 1. 7 million species have been described (1/10 of the total number). Oxford dictionary of biology: the earliest and most primitive organisms, which is believed to have been continuing for at least the past 3 billion years. The gradual process by which the present diversity of plant and animal life arose from. Darwin: decent with modification, change in characteristics of population over time, now we say change in allele frequencies over time. Evolution is a theory of origin of life. Making of the fittest: evolution of the stickleback fish hhmi biointeractive video.
