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Molecular phylogenetics

Summary of Chapter 26

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Biology
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Biology
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Molecular phylogenetics
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Nucleic acid sequence
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Chapter 26 ? Phylogeny and the Tree of Life Overview: Investigating the Tree of Life Process of evolution ? the evolutionary mechanisms (from Unit 4) Pattern of Evolution ? observations of evolution?s products over time. (focus of this chapter) Phylogeny ? The evolutionary history of a species or group of species. Systematics - A discipline focues on classifying organisms and determining their evolutionary relationships. Systematics uses data from fossils to molecules and genes to infer evolutionary relationships. (figure 26.2) 26.1 Phylogenies show evolutionary relationships Taxonomy ? the scientific discipline of how organisms are named and classified. A. Binomial Nomeclature (Instituted by Linnaeus) Binomial: The two part format of the scientific name

Ap Biology Ch 25

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Phylogenetics
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Maximum parsimony
Cladistics
Phylogenetic tree
Systematics
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Molecular evolution
Molecular phylogenetics
cladogram
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Chapter 25 Phylogeny and Systematics Overview: Investigating the Tree of Life This chapter describes how biologists trace phylogeny The evolutionary history of a species or group of related species Biologists draw on the fossil record Which provides information about ancient organisms Figure 25.1 Biologists also use systematics As an analytical approach to understanding the diversity and relationships of organisms, both present-day and extinct Currently, systematists use Morphological, biochemical, and molecular comparisons to infer evolutionary relationships Figure 25.2 Concept 25.1: Phylogenies are based on common ancestries inferred from fossil, morphological, and molecular evidence The Fossil Record Sedimentary rocks Are the richest source of fossils

Campbell Biology 9th Ch. 26 Powerpoint

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Scientific classification
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Lizard
Evolution
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taxonomy
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Paraphyly
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Campbell Biology

Phylogeny and the Tree of Life Chapter 26 Overview: Investigating the Tree of Life Legless lizards have evolved independently in several different groups ? 2011 Pearson Education, Inc. Figure 26.1 Phylogeny is the evolutionary history of a species or group of related species The discipline of systematics classifies organisms and determines their evolutionary relationships Systematists use fossil, molecular, and genetic data to infer evolutionary relationships ? 2011 Pearson Education, Inc. Concept 26.1: Phylogenies show evolutionary relationships Taxonomy is the ordered division and naming of organisms ? 2011 Pearson Education, Inc. Binomial Nomenclature In the 18th century, Carolus Linnaeus published a system of taxonomy based on resemblances
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