MIC 140 MT

MIC 140 MT - Name _ 1 Student ID #_ Mic 140 Bacterial...

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Name ________________________ Student ID #_________________________ 1 Mic 140 Bacterial Physiology Exam 2: T RANSPORT , G ROWTH , T RANSCRIPTION AND R EGULATION , C ELL D IVISION AND REPLICATION , AND PTS Monday, November 19 th , 10:00 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 name (2) your student ID number; (3) the Test Form (this is Test Form A ). The exam consists of 33 questions on 8 pages (including this cover page). I intend for each question to be clear and unambiguous; read the questions thoroughly. If you do not understand a question, P LEASE A SK ! Multiple choice (20 questions): Mark your final answers on a Scantron 2000 form. Use a number 2 pencil and make dark marks that completely fill the answer bubble. Short answer (4 questions): Write your answers in the spaces provided. When finished, turn in your Scantron and Exam. E ACH QUESTION HAS ONLY ONE CORRECT ANSWER 1
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Name ________________________ Student ID #_________________________ 2 Given the following equations: ln(N 2 /N 1 )=k(t 2 -t 1 ); N is the number of cells Log 10 N 2 -log 10 N 1 =k(t 2 -t 1 )/2.303; N is the number of cells k=ln2/g B f -B o =Y(S o -S); S is the limiting substrate concentration and B is the cell concentration Part I Multiple Choice (3 pts each; 45 pts total ) 1. RNA polymerase Holo Enzyme consists of: a. α 2 β 2 β 2 b. α 2 β β c. α 2 β 2 β 2 + σ d. α 2 β β ’ + σ e. none of the above 2. Core RNA polymerase can: a. initiate at specific DNA sites b. elongate c. terminate transcription d. a and b e. b and c 3. For RNA polymerase interacting at the Promoter: a. K B , the isomerization rate constant, determines the rate of open complex formation b. K B, the equilibrium binding constant, determines the ability of RNA polymerase and DNA to form the open complex c. k 2 , the equilibrium binding constant, determines the rate of open complex formation d. k 2 , the isomerization rate constant, determines the rate of open complex formation. e.
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MIC 140 MT - Name _ 1 Student ID #_ Mic 140 Bacterial...

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