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Unformatted text preview: 004 10.0 points Gel electrophoresis is used to separate strands oF DNA by size. The negatively charged back-bone oF the DNA moves the strands From a negative electrode toward a positive electrode through a gel oF agar. Which sizes move Far-ther during the process? 1. The larger strands oF DNA move Farther. 2. They both move the same distance since the phosphates are identically charged. 3. The shorter strands oF DNA move Farther. correct Explanation: It is easier For the smaller segments to travel through the gel. The smaller they are, the less entangled they become. 005 10.0 points A protein is a linear polymer composed oF 1. lipid - base - lipid - base. 2. amino acid - amino acid. correct 3. base - sugar - base - sugar. 4. sugar - amino acid - sugar - amino acid. Explanation: Proteins use condensation polymers oF amino acids....
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This note was uploaded on 05/01/2008 for the course CH 305 taught by Professor Sutcliffe during the Spring '08 term at University of Texas at Austin.
- Spring '08