Practice_Final_2_with_answers-1

Practice_Final_2_with_answers-1 - Name_ TA_ MCDB 1A FINAL...

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Name______________________ TA________________________ MCDB 1A FINAL EXAMINATION DECEMBER 15, 2007 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. Ayoub Questions 18-42 (2 pts each) 50 points Part III. Genetics Dr. Christoffersen Questions 43-92 (3pts each) 150 points Test Color 1 point 252 points __________________________________________________ Part I. Biochemistry Dr. Feinstein Questions 1 -17 (3 points 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 a protein that is 345 amino acids long. When it folds up into its proper three- dimensional configuration, there is a hydrogen bond between the R groups of amino acid 47 and amino acid 222. Which level of protein structure best describes this interaction between amino acid 47 and amino acid 222? A. primary B. secondary C. tertiary D. quaternary E. more information is necessary 2. Covalent bonds can be involved in how many different levels of protein structure (primary, secondary, tertiary, quaternary)?: A. 0 B. 1 C. 2 D. 3 E. 4 MCDB1A Final YellowO Version: 0 Page: 1
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3. Which is a true statement? A. Okazaki fragments are found in the lagging strand of DNA replication and are necessary because DNA polymerase can only synthesize DNA in the 3' to 5 direction. B. Okazaki fragments are found in the leading strand of DNA replication and are necessary because DNA polymerase can only synthesize DNA in the 5' to 3' direction. C. Okazaki fragments are found in the leading strand of DNA replication and are necessary because DNA polymerase can only synthesize DNA in the 3' to 5' direction. D. Okazaki fragments are found in the lagging strand of DNA replication and are necessary because DNA polymerase can only synthesize DNA in the 5' to 3' direction. 4. The ! G for the reaction: aa1 + aa2 ---> aa1-aa2 (peptide bond formation) is about +3 kcal/mole. What does this tell you about the reaction? A. It will proceed very quickly B. It will proceed very slowly C. It will proceed to near completion all by itself D. It will not proceed to near completion without input of additional energy E. no conclusion can be made based solely on this information 5. Consider the segment of DNA drawn below. If the region of DNA encoding the gene of interest is located immediately to the right of the RNA polymerase, will it use the upper or lower strand of DNA for the template? A. upper strand of DNA
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Practice_Final_2_with_answers-1 - Name_ TA_ MCDB 1A FINAL...

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