ANSWERS-BCHS-4306-eX_39211

ANSWERS-BCHS-4306-eX_39211 - BCHS 4306 Exam#1 This exam...

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Unformatted text preview: BCHS 4306 Exam #1 September 24, 2009 This exam consists of 33 questions worth a total of 99 points and 2 bonus questions (34 and 35). All questions are multiple-choice. Each question has only ONE answer so choose the best answer. There are a total of 9 pages in this exam. Make sure you bubble in your PEOPLESOFT ID number AND name on your scantron. Your exam score will be linked to the last 4-digits of the number you bubble in. Good luck! Name_________________________ Peoplesoft ID#_____________________ Corrections Question 17 – convert all Us to Ts Question 14 – has two correct answers 18. Which of the following relationships show negative regulation? a. Lactose and Lac repressor (I) b. cAMP and CAT - CAP c. AraC protein and AraI in the Arabinose operon d. a and b e. a and c 26. Which of the following is TRUE about catabolite repression? a. functions to increase the expression of metabolic genes when glucose is absent b. needs AMP - cAMP c. the ATP to AMP ( cAMP ) conversion is inhibited by glucose d. needs CAP e. all of the above 1. Which of the following is NOT a difference between DNA and RNA? a. Thymine vs. Uracil b. Sugar is deoxyribose vs. ribose c. 2’-OH d. 3’-OH e. Double stranded vs. single stranded Answer: d 2. Which of the following if FALSE about the 3’-OH group? a. is found at the growing end of DNA b. is found at the growing end of RNA c. is where the splice donor site joins the branch site d. is found on ribonucleotide triphosphates (rNTPs) e. is found on deoxyribonucleotide triphosphates (dNTPs) Answer: c 3. Which of the following is NOT COMMON to DNA Pol III and DNA Pol I? a. needed for the accurate synthesis of the leading strand. b. needed for the accurate synthesis of the lagging strand. c. 3’-5’ exonuclease activity d. Polymerizes dNTPs e. 5’-3’ exonuclease activity Answer: e 4. OKAZAKI fragments are associated with? a. the lagging strand b. the leading strand c. intron splicing d. epigenetic modifcation e. transcription Answer: a 5. Which of the following is FALSE about the LEADING strand associated with DNA replication? a. undergoes continuous synthesis b. undergoes discontinuous synthesis c. needs DNA Ligase to connect the fragments d. is synthesized in the 5’ to 3’ direction e. starts off with an RNA primer Answer: b 6. Which of the following does NOT need an RNA primer?...
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This note was uploaded on 10/05/2010 for the course BCHS 3305 taught by Professor Briggs during the Spring '10 term at University of Houston-Victoria.

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ANSWERS-BCHS-4306-eX_39211 - BCHS 4306 Exam#1 This exam...

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