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EEMB_2_Final_Ivory

If the son killing phenotype of spiroplasma were

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4. If the son-killing phenotype of Spiroplasma were suppressed by a combination of interacting gene products produced by the several nuclear genes of the fly and also by genes coded by Wolbachia , then coevolution between the genes suppressing son killing by 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: EEMB 2 Final Ivory Version: 0 Page: 2
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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: 7. Species forming a polytomy are: 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
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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):
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