MCDB_1A_Past_Years_2009_Final_Exam

MCDB_1A_Past_Years_2009_Final_Exam - Name_ TA_ MCDB 1A...

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Name______________________ TA________________________ MCDB 1A FINAL EXAMINATION DECEMBER 12, 2009 Scantron instructions: 1. Use a #2 pencil to complete the form. 2. Write your name and fill in the appropriate bubbles. 3. Write your perm. number in the ID number box and fill in the bubbles . 4. Write the color of your test in the space underneath the I.D. number box. 5. Fill in the entire rectangle of the best answer. Part I Biochemistry: Dr. Feinstein Questions 1-17 (3 pts each) 51 points Part II Cell Biology: Dr. Wilson Questions 18 -34 (2-4 pts each) 50 points Part III Genetics: Dr. Christoffersen Questions 35-84 (3 pts each) 150 points Test Color 1 point 252 points __________________________________________________ Part I. Biochemistry Dr. Feinstein Questions 1-17 (17 questions worth 3 pts each: 51 points total) Choose the one answer that best completes the statement or answers the question. The GENETIC CODE and METABOLIC PATHWAYS are at the end of the Exam. 1. Consider the following transcription bubble. If the upper strand is going to be the template strand, will RNA polymerase move toward the right or the left? A. right B. left C. need more information in order to answer the question MCDB 1A Final Yellow 2 Version: 2 Page: 1
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2. You isolate DNA from an organism and determine that it is composed of 21% A. How much G is in the DNA? A. 29% B. 25% C. 21% D. no way to make this determination without measuring the G content directly E. some other percentage, but doesn't require another measurement 3. Heritable mutations are caused by errors in which process? A. Alternative splicing B. Replication C. Translation D. Transcription E. None of the above is correct 4. Okazaki fragments are found: A. in the ribosome, part way through protein synthesis B. in the transcription bubble C. in the lagging strand during replication D. in the leading strand during replication E. none of the above is a correct answer 5. Consider a transmembrane protein that allows important nutrients to enter a cell. Which of the following amino acids would you expect to be on the outer surface of the protein with its R group extending straight outwards into the interior of the membrane? A. Amino Acid A B. Amino Acid B C. Amino Acid C D. Amino Acid D E. Amino Acid E MCDB 1A Final Yellow 2 Version: 2 Page: 2
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NOT an example of an oxidation/reduction reaction? A. phospholipid synthesis B. disulfide bond formation C. NAD + H + ! NADH D. more than one of the above is a correct answer 7. Which of the following is true about dehydration reactions? A. The " G is negative, so dehydration reactions are not favored; B. The " G is positive, so dehydration reactions are favored; C. The " G is negative, so dehydration reactions are favored; D. The " G is positive, so dehydration reactions are not favored 8. Is this the proper chemistry for peptide bond formation? A. yes
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MCDB_1A_Past_Years_2009_Final_Exam - Name_ TA_ MCDB 1A...

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