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mic150_e3 - Mic 150 Bacterial Genetics FINAL EXAM Thursday,...

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M IC 150 - 1 - Final Exam W'09 Mic 150 Bacterial Genetics F INAL E XAM Thursday, 19 March 2008, 8:00 a. m. Before you begin working on your exam, take a moment to review these excerpts from the UC Davis Code of Academic Conduct: All members of the academic community are responsible for the academic integrity of the Davis campus … Examples of academic misconduct include: • receiving or providing unauthorized assistance on examinations • using unauthorized materials during an examination … • altering an exam and submitting it for re-grading … • using false excuses to obtain extensions of time The ultimate success of a code of academic conduct depends largely on the degree to which it is willingly supported by students themselves. Instructions Be certain to mark your Scantron with: (1) your student ID number; (2) the Test Form (this is Test Form A ). I intend for each question to be clear and unambiguous; there are no "trick" questions. If you do not understand a question, P LEASE A SK ! The exam consists of 35 multiple-choice questions: 30 questions at 1 point each, and 5 questions at 2 points each. Mark your answers on a Scantron 2000 form. Use a number 2 pencil and make dark marks that completely fill the answer bubble. You will keep your exam, so note your answers for reference. You have 120 minutes to complete the exam (8:00 - 10:00). A grade penalty will be deducted from exams returned after 10:00. E ACH QUESTION HAS ONLY ONE CORRECT ANSWER
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M IC 150 - 2 - Final Exam W'09 Part A. One Point Each (30 points total) Each question has only one correct answer. 1. A bacterial genome of approximately 4.5 Mb encodes approximately a. 4.5 × 10 3 proteins b. 9.0 × 10 3 proteins c. 4.5 × 10 4 proteins d. 9.0 × 10 4 proteins 2. The genetic designation valJ38 denotes a. the wild-type valJ38 gene b. a mutation of the valJ gene c. an insertion of 38 bp in the valJ gene d. a deletion of 38 bp in the valJ gene 3. Resistance to β -lactam antibiotics results from mutations in a. capsule synthesis enzymes b. ribosome proteins c. peptidoglycan synthesis enzymes d. a and c 4. Vaccine escape by Streptococcus pneumoniae results from a. allelic variation (polymorphism) at the cps locus b. inhibition of immune cell function c. transformation d. a and c 5. Selection for the Gal + phenotype is growth on defined medium with a. galactose as sole carbon source b. glycerol plus galactose as carbon sources c. lactose as sole carbon source d. a and c Continued on Next Page
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M IC 150 - 3 - Final Exam W'09 Part A. One Point Each (continued) Each question has only one correct answer. 6. In bacteriophage λ , transcription repression directly controls a. early lytic gene expresson b. cI gene expresson c. late lytic gene expression d. a and c 7. In bacteriophage λ , transcription activation directly controls a. early lytic gene expresson b. cI gene expresson c. late lytic gene expression d. a and c 8. Site-specific recombination is required for a. replicative transposition
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mic150_e3 - Mic 150 Bacterial Genetics FINAL EXAM Thursday,...

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