Study Guide for AP Bio Test on Evolution Chapters 22 – 24 You should know…. About Darwin Evolution as defined by Darwin and concept today Scientists/theories influenced development of the theory Points of Darwin’s Theory Evidences (4) for evolution Homologous vs analogous structures Vestigial structures Microevolution vs macroevolution Origins of genetic variation Average heterozygosity Hardy-Weinberg – how to do problems, conditions that maintain genetic equilibrium How gene frequencies can be altered Difference in types of genetic drift – bottleneck, founder effect Relative fitness Types of natural selection Sexual selection – types How to preserve genetic variation 4 concepts of species Types of reproductive isolation (prezygotic and postzygotic, types of each) 3 main types of speciation, how differ Autoploidy and allopolyploidy in sympatric speciation Punctuated equilibrium vs gradual change in timing of evolution