KimseyRoseheimFinalW04key

KimseyRoseheimFinalW04key - BIS 1B Final. Rosenheim and...

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BIS 1B Final. Rosenheim and Kimsey ANSWER KEY Winter 2004 Questions 1-25: Multiple choice questions (3 points each; total 75 points) Select one best answer and mark SCANTRON form using a #2 pencil. Be sure to put your name and student ID on the SCANTRON (and circle answer on the exam). 1. Which of the following was NOT a ‘hurdle’ that had to be overcome to establish the first theory of evolution a. Plato’s theory of essentialism, which emphasized the constancy and discontinuity of different forms b. Plato’s concept of the “great chain of being” or the scala naturae c. a view of the “tree of life” as having a branching structure d. the view of the earth as being young, and freshly created e. All of the above were hurdles to establishing a theory of evolution Answer: c 2. Mendel’s first law (particulate inheritance) implies that a. offspring cannot inherit traits from both of their parents b. offspring cannot exhibit phenotypes that are intermediate between those of their two parents c. gametes produced by an individual carry information that reflects an averaging of the information inherited from that individual’s father and mother, for any trait of interest d. individuals who are heterozygous at any particular locus (say, A 1 A 2 ) produce gametes that reflect the influence of both A 1 and A 2 e. None of the above is true Answer: e. 3. Evolution by natural selection a. can operate only in infinite populations, where genetic drift is prevented b. cannot operate when ongoing mutation also produces large changes in allele frequencies c. can only operate with random mating d. cannot operate without variation in individual reproductive success e. cannot operate when there is extensive gene flow between adjacent populations Answer: d. 4. Which of the following is NOT a reason that antibiotics need to be prescribed and used with caution a. antibiotics can cause infections produced by resistant, pathogenic bacteria to become worse, because they can kill other species of susceptible bacteria that normally compete with the pathogenic species b. antibiotic use can accelerate the evolution of resistance c. antibiotics function by accelerating the rate of mutation in the targeted bacteria, causing resistance to appear d. resistant bacteria can spread from one treated person to other people who live in close proximity (for example, other family members) e. antibiotic genes can move between different species of bacteria through a process called “horizontal gene transfer” Answer: c.
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5. The biological species concept a. suggests that species should be defined primarily on the basis of their appearance b. successfully accommodates polymorphism and sibling species c. successfully accommodates asexual species d. emphasizes natural selection acting against hybrids that fall between the distinct ‘niches’ occupied by the parental species e. none of the above is true Answer: b. 6.
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This note was uploaded on 04/15/2008 for the course BIS 1b taught by Professor Kimsey during the Spring '08 term at UC Davis.

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KimseyRoseheimFinalW04key - BIS 1B Final. Rosenheim and...

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