Test 1-Sample Questions - BIO150Y Sample Test 1 Questions...

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Copyright © 2009 BIO150, University of Toronto BIO150Y Sample Test 1 Questions – October 2009 1. To measure the Darwinian fitness of individuals it is necessary to: a. use neutral genetic markers to measure gene flow. b. determine the viability of species on islands and continents. c. compare genotypes in their viability and reproductive success. d. estimate the heterozygosity of individuals using electrophoresis. e. determine how many genes control a trait. 2. Exotic invertebrate species invasions in the Great Lakes, as discussed in the Bioscience article by Mills and colleagues, have largely occurred because of: a. increased water temperatures due to climate change. b. changes in water level in the Great Lakes. c. the dumping of water ballast by ships. d. reduced ice cover on lakes. e. the introduction of exotic fish by the aquarium trade. 3. What are the major differences between the Classical and Balance Schools concerning the genetic structure of wild populations? i. The two schools predict similar amounts of polymorphism but different levels of heterozygosity. ii. The Classical school predicts that most loci are monomorphic. iii. The Classical school predicts there is no common wild-type allele at each locus. iv. The Balance school predicts many more different alleles in a population. v. The Classical school predicts low levels of heterozygosity. a. i and iii b. i and v c. ii, iii and v d. ii, iv and v e. iv and v 4. Which of the following is NOT a consequence of population bottlenecks? 5. Which statement about natural selection is FALSE?
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