EEMB_2_Final_Ivory

Spiroplasma would be an example of a the

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Unformatted text preview: Spiroplasma would be an example of: A. The interspecific Red Queen B. The intraspecific/intergenic Red Queen C. Interspecific mutualistic coevolution D. Intraspecific mutualistic/intergenic coevolution E. Answers C and D are both correct 5. Suppose that the fly had chromosomal sex determination with XX males and XY females. Genes on the Y chromosome would be selected to: A. Kill sons like Spiroplasma does B. Suppress son-killing by Spiroplasma C. Evolve mutualistically with other genes that suppress son-killing by Spiroplasma D. Answers B and C are both correct E. None of the above answers is correct EEMB 2 Final Ivory Version: 0 Page: 2 Use the following information to answer the following 5 questions (until you see a solid line): Genes in the genome sometimes become duplicated due to DNA replication errors. One type of gene duplication is a tandem repeat, in which the new copy of a gene is located immediately next to the original copy. Additional copies of the gene can be produced in the same way to produce tandem repeats longer than two copies. DNA replication errors can also delete one or more copies of previously duplicated genes. Jane Doe decides to use the copy number of 10 genes to construct a phylogenetic tree for 5 bird species (A, B, C, D, and E) and a more distantly related reptile species (T) 6. A synapomorphy for all the birds is: A. 2 copies at position 9 B. 4 copies at position 4 C. 1 copy at position 1 D. Both A and B are correct E. None of these answers is correct 7. Species forming a polytomy are: A. species-D and species-A B. species-C, species-B, and species-D C. species-C and species-E D. there are no polytomies E. all species except the outgroup 8. According to this phylogenetic tree, the reptile’s closest relative is: A. species-A B. species-B C. species-C D. species-D E. species-E EEMB 2 Final Ivory Version: 0 Page: 3 9. If an 11 th gene was measured and found to have 4 copies in all species except the reptile and species-C (both of which have 3 copies): A. there is evidence for homoplasy B. there is evidence for a reversal C. there is evidence for polytomy D. there is evidence for saturation E. both answers A and B are correct 10. If the same 10 genes were used to construct a phylogeny for 5 different and more distantly related taxa and all taxa had a different copy number for all of the genes, this would be equivalent to what phenomenon with DNA sequence data: A. saturation B. reversal C. a root D. a synapomorphy E. None of these answers is correct Use the information below for the next 5 questions (until you see a bar beneath the question) A epidemiologist traces the fate of 500 newborn feral cats during an outbreak of a viral disease....
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Spiroplasma would be an example of A The interspecific Red...

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