UNIT III Practice Exam _2 & revised KEY

UNIT III Practice Exam _2 & revised KEY - Unit III...

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Unit III PRACTICE Exam #2 BSC 2011 Fall 2007 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The ostrich and the emu look very similar and live in similar habitats, however they are not very closely related. This is an example of _______. A) sympatric speciation. B) divergent evolution. C) convergent evolution. D) exaptation. E) adaptive radiation. 2) The correct sequence from the most to the least comprehensive of the taxonomic levels listed here is _______. A) kingdom, phylum, order, class, family, genus, and species. B) phylum, family, class, order, kingdom, genus, and species. C) phylum, kingdom, order, class, species, family, and genus. D) kingdom, phylum, class, order, family, genus, and species. E) family, phylum, class, kingdom, order, species, and genus. 5) Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of homology? A) Dogs and wolves shared a common ancestor very recently. B) Dogs and wolves have very similar morphologies. C) Dogs and wolves are both members of the family Canidae. D) Convergent evolution has occurred. E) Dogs and wolves belong to the same order. 17) Which of the following would be an example of macroevolution? A) evolution of polymorphism in Papilio dardanus , with each morph mimicking a different protected butterfly B) evolution of antibiotic resistance in a strain of E. coli C) evolution of modern humans, Homo sapiens , from australopithecine ancestors D) replacement of a melanin-poor morph by a melanin-rich morph over many generations under conditions of increased UV exposure E) evolution of insecticide resistance in populations of insect pests treated through the years with DDT Use the following information to answer the following THREE questions below. A large population of laboratory animals has been allowed to breed randomly for a number of generations. After several generations, 36% of the animals display a recessive trait ( aa ), the same percentage as at the beginning of the breeding program. The rest of the animals show the dominant phenotype, with heterozygotes indistinguishable from the homozygous dominants. 18)
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This note was uploaded on 04/01/2012 for the course BSC BSC2011 taught by Professor Spears during the Spring '10 term at FSU.

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UNIT III Practice Exam _2 & revised KEY - Unit III...

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