BIMM 121 exam 3

BIMM 121 exam 3 - BIMM121 Exam 3 March 14, 2008 100 points...

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1 BIMM121 Exam 3 March 14, 2008 100 points Name _______________________ Student ID # _________________ Lab Group # __________________ By signing below, I authorize Dr. Larsen to leave my exam in 4070 York Hall. I understand that this leaves my exam open to public scrutiny and that it may disappear. ________________________________
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2 1. What do the microbes that are part of the mouth flora and the microbes used in yogurt production have in common? 2. Describe the assay for microbial flora of the mouth including what we were testing for. 3. What is a ZOI (define it) and how is it a useful measure?
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3 4. In the transformation experiment: A. What was the purpose of the CaCl 2 ? B. Why were the cells subjected to heat shock in the presence of the DNA? C. Why did you see both blue and white colonies on the transformation plates? (what was in the media and how was it affected by products of the plasmids we introduced?) 5. In the soil (or in any environment, for that matter!) what is the most important molecule needed for maintaining life?
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This note was uploaded on 06/07/2008 for the course BIMM 121 taught by Professor Larsen during the Spring '08 term at UCSD.

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BIMM 121 exam 3 - BIMM121 Exam 3 March 14, 2008 100 points...

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