2007Exam2

2007Exam2 - BI206/282 Exam 2 Page 1 March 29, 2007 Form 0...

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Unformatted text preview: BI206/282 Exam 2 Page 1 March 29, 2007 Form 0 YOUR NAME:_______________________ YOUR TF s NAME: ________________________ THIS IS EXAM FORM O Remember to fill out your computer form properly. Please include: a) Name (Last Name First name) omit middle initials b) ID number c) Course Code Fill in Special Code Box 0 as 0 for BI206 or 1 for BI282 d) Form Code Fill in Special Code Box 1 as 0 for Form 0 e) TF Code Fill in Special Code Box 2 to indicate your TF: Paige Bass 0 Bianca Heinrich 1 Larissa Jarzylo 2 Steven Mullenbrock 3 Be sure that you have answered 34 questions and that you have given one answer only per question. For each question only one answer is correct. So please choose the best answer from the ones provided. Please write your name on this booklet. Exam booklets will be collected at the end of the exam, but you will have the opportunity to see you exam booklet and score sheet at a later date. Grades will be posted on the Student Link. Prior to completing this exam, please read the following statement and sign the top of your scantron. I pledge that I have neither given nor received unauthorized assistance on this exam. I understand if I am charged with cheating, my name will be submitted to the CAS Dean for disciplinary action. BI206/282 Exam 2 Page 2 March 29, 2007 Form 0 this page is intentionally left blank BI206/282 Exam 2 Page 3 March 29, 2007 Form 0 1. Two strains of S. cerevisiae (yeast) are crossed. One has the genotype XYZ and the other xyz. Five sets of the resultant tetrads are noted below. In which set did a gene conversion event occur? A. xyZ, xyz, XYz, XYZ B. xyz, xyz, XYZ, XYZ C Xyz, Xyz, xYZ, xYZ D xyz, XYZ, xyZ, Xyz E xYz, xYz, XyZ, XyZ 2. The nucleotide change ________ is an example of a transversion, while the nucleotide change ________ is an example of a transition. A. A to G, C to G B. C to G; A to G C. T to C; A to G D. C to T; G to A E. G to C; C to G 3. The fluctuation test of Luria and Delbrck supports the hypothesis that: A. Bacterial resistance to antibiotics is the result of mutations already existing in the bacterial population prior to exposure to the drug. B. Mutations arise as in response to changes in environmental condition. C. Mutations occur spontaneously as a result of random processes that can happen at any time and anywhere in the genome. D. In E. coli , the number of mutants in any bacterial population will be constant. E. a and c 4. In an Ames test for mutagenicity, rat liver enzymes are accidentally excluded from the compound under test. What can you conclude about the results?...
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This note was uploaded on 05/18/2008 for the course BI 206 taught by Professor Celenza during the Spring '08 term at BU.

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2007Exam2 - BI206/282 Exam 2 Page 1 March 29, 2007 Form 0...

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