BIOL 3454 2nd Edition Lecture 2 Outline of Current Lecture I II III IV V VI VII VIII IX X XI XII XIII Evolution Darwin Wallace Theory a Perpetual change b Common decent c Multiplication of species d Gradualism e Natural selection 1930 s modern synthesis Fusion of genetics with evolutionary theory Lamark inheritance of acquired characteristics 1809 Principles of biology a Sir Charles Lyell b Uniformitarianism Chagas Disease a It was believed Darwin had this disease b Extreme fatigue c Attracted by bug bite What was Darwin missing a Took him a long time to publish b Social hymenopterans eusociality don t pass on genes in reproduction c Wallace writes Darwin with the same theory d Together they write and publish Origin of Species published in 1859 In 1930 s modern biology starts Discipline of genetics a Allows quantifications of relatedness among individuals Theory of natural selection a Variation among individuals b Some of the variation is heritable c More offspring produced than can survive d Different survival reproduction based on variation e More successful variants proliferate Life has a common origin a All life has a common origin b One or very few common ancestors asexual reproduction autotrophic Phylogenetic tree a Shows relatedness divergence These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute XIV XV XVI XVII XVIII XIX b Relative c Can include time distance Speciation 2 main modes in animals a Allopatric most common b Non allopatric sympatric parasympatric chromosomal Vicariance based allopatric speciation populations isolated diverge become different species Madagascar is an example a Off the coast of Africa b Example of vicariance isolation c 90 of all plants and animals are endemic found nowhere else Isolation of Populations a Courtship incompatibility premating prezygotic b Gamete incompatibility postmating prezygotic c Reduced offspring fitness postmating postzygotic Sympatric speciation niche based a Very rare in animals b Common in plants c Rhagoletis flies Sympatric speciation chromosome based
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