ReadingQuizzesWeek5 - Lecture 15 Phylogenetic Trees Post 10/21 for Monday October 22 nd 1 What is a monophyletic group a a single branch on a

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Lecture 15 Phylogenetic Trees; Post 10/21, for Monday, October 22 nd 1. What is a monophyletic group? a. a single branch on a phylogenetic tree b. a major branch on the tree of life c. a common ancestor and all of its descendants d. species or lineages that share homologous traits 2. What is an outgroup? a. a taxon that is closely related to a monophyletic group, but not part of it b. a lineage that is distantly related to other lineages on a tree c. the root of a tree (the common ancestor) d. a trait that is not shared by members of a monophyletic group 3. Homology and homoplasy produce similar traits. What is the key difference? a. homologous traits are more similar than traits due to homoplasy b. homoplasy is much more common than homology c. only homology results from evolution by natural selection d. whether or not the traits were inherited from a common ancestor 4. What is a synapomorphy? a. a shared trait that was present in a common ancestor b. any homologous trait c. a trait that is similar due to homology or homoplasy d. a homologous trait that identifies a monophyletic group
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Lecture 16, Speciation; Post 10/22, for Tuesday, October 23 rd 1. What criterion does the biological species concept use to identify species? a. forming an independent twig on a phylogenetic tree b. reproductive isolation c. morphological distinctiveness d. geographic isolation 2. Which of the following is a strength of the biological species concept?
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This note was uploaded on 04/10/2008 for the course BIOL 180 taught by Professor Freeman during the Fall '07 term at University of Washington.

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ReadingQuizzesWeek5 - Lecture 15 Phylogenetic Trees Post 10/21 for Monday October 22 nd 1 What is a monophyletic group a a single branch on a

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