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Phylogeny

Phylogeny and Systematics lecture

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Biology
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Phylogeny

Phylogenetic Tree AP Biology B Lecture 2: Systematics & Phylogenetics Linnaeus zYou can blame Carolus Linneaus for the SYSTEMATIC classification scheme you reviewed over winter break. -Binomial nomenclature ? Genus + species name of an organism *Ex: Enhydra lutra = sea otter *Ex: Felis domesticus = house cat *Ex: Agrobacterium tumifaciens = bacteria often used to transform other organisms Systematic Classification zLinneaus was not the first to classify organisms ? classification dates back to famous Greeks like Aristotle zClassification schemes have undergone many changes over the years -2 Kingdom system *Animals & Plants -5 Kingdom system *Animals, plants, bacteria, fungi, protists -3 Domain system (Current) *Eukarya, Eubacteria, Archaea

Phylogeny Lecture Notes

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Biology
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Phylogeny

Ecology Connections Population Genetics ? Research Connections ? 2003 University of Calgary Kananaskis Field Stations Alberta Innovation & Science ISRIP Science Awareness & Promotion Program 4 2. HARDY-WEINBERG EQUILIBRIUM IN POPULATIONS ? The Hardy-Weinberg Equilibrium equation allows population geneticists to calculate the frequencies of alleles (genotypes) in a population and if the frequencies are in equilibrium or changing. The frequency of one allele is designated as "p" and the frequency of the other allele is designated as "q". If we add the proportions of both alleles, we will have all of the alleles in the population. Thus, p + q = 1.00. ? When the population is in equilibrium, p2 + 2pq + q2 = 1.00. Note that this second
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