102 quiz 6 KEY - MCB102 Quiz#6 11/29 Question 1 (6 points)...

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MCB102 Quiz#6 11/29 Question 1 (6 points) Give the name of the E. coli enzyme that acts at each of the following steps in leading strand DNA synthesis (drawing not to scale). (Maximum length: 1 sentence each, full sentences not required) 1a. What enzyme acts during step A? 1b. What enzyme acts during step B? 1c. What enzyme acts during step C? 1d. What enzyme acts during step D? 1e. What does the arrowhead ( ) represent? 1f. What does the wavy line ( ) represent? Primase or DnaG DNA polymerase III -0.25 if no “DNA” DNA polymerase I -0.5 if II not I Ligase 3’ OH, 3’ end or 5’ to 3’ direction -0.5 if just say direction of synthesis RNA or primer A B C D
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MCB102 Quiz#6 11/29 Question 2 (4 points) 2a. What type of DNA damaging agent would an E. coli cell lacking photolyase be more sensitive to? (Maximum length: 1 sentence) UV light or radiation 1 point total -0.5 if wrong answer but mention thymine dimers 2b. What repair pathway would be affected in an E. coli cell carrying a mutation in the Dam
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This note was uploaded on 04/02/2008 for the course MCB 102 taught by Professor Staff during the Spring '08 term at University of California, Berkeley.

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102 quiz 6 KEY - MCB102 Quiz#6 11/29 Question 1 (6 points)...

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