Midterm II Spring 07B - Answer Key

Midterm II Spring 07B - Answer Key - Name: _ BIS101-01,...

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Name: ______________________________ ID:_______________________________ BIS101-01, Spring 2007 Dr. D. J. Kliebenstein, Instructor Midterm Exam II Please print your name and ID number on each page of the exam. The exam has 10 questions and a total of 120 points. For full credit, show all of your work. AUTHORIZATION FOR PUBLIC DISTRIBUTION OF GRADED PAPERS OR EXAMINATIONS I, _______________________________, student ID No.__________________________________: authorize the University to publicly distribute my graded exam (e.g., handed out in class or left in an exam bin) for BIS101-01. If I do not sign, then I must see the instructor to pick up my exam. Signed: ________________________________ Dated: _______________ 1
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Name: ______________________________ ID:_______________________________ 1 __________ 2 __________ 3 __________ 4 __________ 5 __________ 6 __________ 7 __________ 8 __________ 9 __________ 10 __________ Total _________ 2
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Name: ______________________________ ID:_______________________________ 1. (12 points) Complete the following Table, assuming that reading is from left (5’) to right (3’) and that the columns represent transcriptional and translational alignments. T G G T C A A T N T G A DNA double helix A C C A G T T A N A C T U G G U C A A U N U G A mRNA A C C A G U U A N no anticodon tRNA anticodon amino acids TRP SER ILE or MET STOP incorporated into protein Which of the above rows is the non-coding strand? The second DNA strand is the non-coding strand. 3
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Name: ______________________________ ID:_______________________________ 2. (6 points) Both eukaryotes and prokaryotes regulate the expression of genes. Give an example of how this is similar and different with regards to the promoter. Why is there potentially this major difference in the two groups of organisms? Both groups of organisms use the promoter to direct the RNA Polymerase to the transcription start site. In prokaryotes, this is simply the RNAP and the sigma factor while in eukaryotes this is a much more complex process involving dramatically more proteins. These extra proteins may function to allow the eukaryote to find a promoter with more specificity as there are fewer promoters per unit DNA in a eukaryote. 3. (16 points) In lecture, we went over a number of sequences and pieces of information required to generate a functional prokaryotic gene. Use the line below as a DNA element and diagram a prokaryotic gene including all information necessary to make a functional protein. State if each element functions as DNA, RNA or Protein? Protein sequence
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Midterm II Spring 07B - Answer Key - Name: _ BIS101-01,...

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