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Exam 2 2008 Morning Yellow - Biol 3301 Exam 2 Morning...

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Biol 3301 Exam 2 Morning Yellow October 30, 2008 There are a total of 9 pages in this exam. This exam consists of 42 questions worth a total of 100 points. All questions are multiple choice and there is one best answer for each question. Record your answers on the scantron sheet, and answer only once for each question or you will be automatically marked wrong. Use a #2 pencil. Name:________________________________________________ PeopleSoft ID#__________________________________
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1 . What is the function of the TATA binding protein? c a) Aids in the removal of introns from eukaryotic pre-mRNA b) Allows prokaryotic RNA polymerase to bind to the promoter of genes c) Allows eukaryotic RNA polymerase II to bind to the promoter of genes d) Helps termination factors bind and terminate transcription 2. Which of the following DNA sequences could be the template for a piece of mRNA with the sequence: 5’ UGC CGA CGU AGG 3’ d a) 5’ TGC CGA CGT AGG 3’ b) 3’ TGC CGA CGT AGG 5’ c) 5’ ACG GCT GCA TCC 3’ d) 3’ ACG GCT GCA TCC 5’ 3 . Which of the following is the role of the 5’ cap? c a) The cap helps the RNA polymerase find the promoter and initiate transcription. b) The cap plays a role in the removal of introns. c) The cap acts as a binding site for the ribosome. d) The cap protects the chromosome ends 4 . Which of the following is NOT a difference between RNA and DNA? c a) Sugar – ribose vs. deoxyribose b) 2’-OH c) 3’-OH d) Base - Uracil vs. Thymines e) None of the above. 5 . In what cellular compartment are introns removed from pre-mRNA to make mature mRNA? c a) Cytoplasm b) Endoplasmic Reticulum c) Nucleus d) Mitochondia e) Golgi apparatus 6 . Which of the following is one of Chargaff’s rules? e a also got a point a) Total amounts of purine (T and C) are equal to pyrimidine (A and G). b) Total amounts of purine (T and A) are equal to pyrimidine (C and G). c) There is no ratio of the nucleotides in relationship to one amount. d) Total amounts of all the nucleotides are equal. e) None of the above
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Questions 7 - 11 : Following is a diagram of replication in process. 7 . What is the name of the protein labeled #27? d a) DNA polymerase I b) RNA primase c) Topoisomerase d) DNA polymerase III e) Helicase 8 . What is the name of the element labeled #24? d a) Leading strand b) Topoisomerase c) Okazaki fragment d) RNA primer e) Helicase 23 25 26 24 3’ 5’ 27
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