Quiz 5-Form12009

Quiz 5-Form12009 - BIL 150 QUIZ 5-FORM 1 FALL 2009 1 E coli...

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BIL 150 QUIZ 5-FORM 1 FALL 2009 1. E. coli cells grown on 15 N medium are transferred to 14 N medium and allowed to grow for two more generations (two rounds of DNA replication). DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment? A. one high-density and one low-density band B. one low-density band C. one high-density and one intermediate-density band D. one intermediate-density band E. one low-density and one intermediate-density band 2. Tertiary structure is NOT directly dependent on _____. A. hydrogen bonds B. bonds between sulfur atoms C. ionic bonds D. peptide bonds E. hydrophobic interactions 3. In analyzing the number of different bases in a DNA sample, which result would be consistent with the base-pairing rules? A. A + T = G + T B. A + G = C + T C. A = G D. A = C E. G = T 4. What is the fate of the phosphate group that is removed when ATP is converted to ADP? A. It is broken down into one phosphorus and four oxygen atoms.
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Quiz 5-Form12009 - BIL 150 QUIZ 5-FORM 1 FALL 2009 1 E coli...

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