sum0301 - Biochemistry 694:301 First Exam, Dr. Deis Monday...

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Biochemistry 694:301 Name_________________________ First Exam, Dr. Deis Last 5 digits, Soc.Sec.Num._________ Monday July 22, 2002 Row Letter ____ Seat Number ____ This exam consists of two parts. Part I is multiple choice. Each of these 25 questions is worth two points. Answer the Part I questions on this sheet, below. Answer the Part II questions on the question pages. Please use BLOCK CAPITAL letters like this --- A, B, C, D, E. Not lowercase! 1. ______ 10. ______ 18. ______ 2. ______ 11. ______ 19. ______ 3. ______ 12. ______ 20. ______ 4. ______ 13. ______ 21. ______ 5. ______ 14. ______ 22. ______ 6. ______ 15. ______ 23. ______ 7. ______ 16. ______ 24. ______ 8. ______ 17. ______ 25. ______ 9. ______ GRADE: Part I Total _______ Part II: II-1 _______ II-2 _______ II-3 _______ II-4 _______ II-5 _______ Part II Total _______ _______
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694:301 First Exam, page 2 Name ________________________ 1. At a magnification of 10 8 , or "2 Å per inch," an average protein would be about the size of A. a house D. an apple B. a truck E. a marble C. a large pillow 2. The distinguishing feature of the Eukarya is that A. they are all multicellular B. they have tough cell walls around each cell C. they have a well-defined nucleus within each cell D. they are more primitive than the Archaea or the Bacteria 3. Which building block is found only in DNA, and helps maintain the informational integrity of DNA? A. uracil D. cytosine B. adenine E. guanine C. thymine 4. Stanley Miller wrongly assumed what? A. amino acids formed in early Earth atmosphere B. lightning is simulated by a spark C. the Earth had a reducing atmosphere D. nucleotides are easily synthesized E. all of the above 5. If a protein has 400 amino acid residues, what is its approximate mass? A. 400 daltons D. 188,000 daltons B. 4,400 daltons E. none of the above C. 44, 000 daltons 6. The "beta sheet" would be located where on a standard Ramachandran plot? A. top left corner D. lower right corner B. top right corner E. near the center C. lower left corner 7.* Examine the amino acids drawn below: A. #1 is L, #2 is L C. #1 is D, #2 is L B. #1 is L, #2 is D D. #1 is D, #2 is D 8. SDS-PAGE and isoelectric focusing have what in common? A. both separate native proteins
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This note was uploaded on 05/09/2008 for the course MOLBIO 315 taught by Professor Deis during the Spring '08 term at Rutgers.

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sum0301 - Biochemistry 694:301 First Exam, Dr. Deis Monday...

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