F09 Bio1010 Exam Microbiology

Cells arise only from preexisting cells by a process

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Unformatted text preview: done, with the following results were observed for the offspring: 410 flies with long wings and a black body 105 flies with long wings and a brown body 390 flies with vestigial wings and a brown body 95 flies with vestigial wings and a black body Which of the choices below best represents the map distance between the genes for these two traits? A. 100 map units 95+105 [recomb]/410+105+390+95 [all] B. 25 map units C. 20 map units 200/1000 = 0.2 * 100 = 20% recombination = 20 m. u. D. 10 map units E. 2 map units F. 1 map unit 42. A relationship between phenomena that has been established based on large amounts of observational and experimental data is referred to as a/an: A. B. C. D. E. theory. variable. assumption. control. hypothesis. 43. In order for light to be used by an organism, photons must be A. B. C. D. reflected. transmitted. absorbed. reflected, transmitted, and absorbed. 44. Bacteria differ from eukaryotes in which of the following ways? A. B. C. D. Membrane composition and structure. Nature of the material used for information storage (heredity). Range of metabolic diversity. None of the above. 13 45. Biological molecule damage from _________ can be prevented by _________. A. B. C. D. E. UV radiation; melanin. visible light; melatonin. infrared radiation; carotenoids. ionizing radiation; pyrimidine dimers. visible light; chlorophyll. 46. Central ideas of Darwin's theory of evolution by natural selection include all of the following EXCEPT: A. Individual organisms in a population vary in many heritable traits. B. Any population has the potential to produce far more offspring than the environment can support. C. Some individuals have traits that provide them with an advantage in their local environment. D. Organisms more likely to survive and reproduce pass on favourable traits to their offspring, and the incidence of trait(s) in the population will change. E. Over time, individuals of the population will approach perfection. 47. The cell theory states that A. B. C. D. E. all living organisms are composed of cells. cells are the functional units of life. cells arise only from preexisting cells by a process of division. Only 2...
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