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Practice_exam_I_ZOL_320_2011-2 - Practice exam I 2011 These...

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Practice exam I 2011. These are mainly questions from last year’s first exam and representative of the type of questions you should expect. Your exam will not include these identical questions but they will cover the same material. There will be 75 points on the exam, 30 2 pt. multiple choice and 3 5 pt. essay/drawing/short answer questions. 1. Haeckel’s phrase “Ontogeny recapitulates phylogeny” means that: a. All animal development starts off with an egg. b. The early stages are the same in most animals. c. The adult body plan of less complex phyla have to be passed through as stages on the way to make the body plan of the more co mplex animal. d. Evolution occurs by changes in the ontogeny of animals. e. The fertilized zygote resembles an ancient unicellular animal. 2. Development from an unfertilized egg is called: a. Epigenesis. b. Parthenogenesis . c. Morphogenesis. d. Phylotypic staging. 3. Asexually reproducing species are disadvantaged versus sexually reproducing species: a. in how to get rid of harmful mutations. b. in the threat of overgrowth by cell variants. c. in the ability to exploit stable environments. d. a and b above . e. a and c above. 4. The variation in sexual reproduction is NOT from the following: a. Mutation in somatic cells. b. Reassortment of chromosomes in meiosis. c. Genetic recombination in meiosis. d. Mutation in primordial germ cells. 5. Which of the following is a result of an epigenetic effect? a. The different coat colors in breeds of dogs as in a black fur for a Black Labra dor and tan fur for a Golden Retriever. b. The formation of calico cat coat color variation by X-chromosome inactivation. c. The formation of a cancer cell from a somatic cell after viral infection in which oncogenic (cancer-causing) genes of the virus are transferred to the nucleus of the somatic cell and are inherited in all the descendant cancer cells. d. Any type of morphogenesis in which only epithelial cells are involved.
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6. Which of the following is an example of paragenetic inheritance? a. Formation of a plasma membrane-like structure from phospholipids mixed in water. b. A mitochondrion forms from the template of a previously existing mitochondrion . c. Any mutation is which there are differences in chromosome numbers. d. None of the above. 7. Modern genomic analysis has found that mutations in animals with more complex body plans are not random but rather directed to the goal of forming those more complex processes and structures of development more so than in animals with less complex body plans? a. True. b. False. 8. Which of the following is an example of morphogenesis? a. The development of the mammalian embryo from egg to birth. b.
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Practice_exam_I_ZOL_320_2011-2 - Practice exam I 2011 These...

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