CH26 - PHYLOGENY AND THE TREE OF LIFE Learning objectives Phylogenies Show Evolutionary Relationships 1. Distinguish between phylogeny and systematics . 2. Explain the following characteristics of the Linnaean system of classification: Binomial nomenclature Hierarchical classification. 3. Explain the justification for the proposal to replace Linnaean classification with PhyloCode designations for monophyletic taxa. 4. Explain the statement: “ A phylogenetic tree represents a hypothesis about evolutionary relationships. ” 5. Explain why it is crucial to distinguish between homology and analogy before selecting characters to use in the reconstruction of phylogeny. Describe how homology and analogy can be distinguished from each other. 6. Explain why bird and bat wings are homologous as vertebrate forelimbs but analogous as wings. 7. Define molecular systematics . Explain some of the problems that systematists may face in carrying out molecular comparisons of nucleic acids. The Construction of Phylogenetic Trees
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This note was uploaded on 04/30/2011 for the course BIOL 1362 taught by Professor Loeblich during the Spring '08 term at University of Houston.