6 - http/www4.ncsu.edu/~knopp/BCH451/e00a3.htm BCH 451...

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BCH 451 Spring 2000 Exam #3 Draw the predominate structures of the following molecules at the pH indicated. Be sure to include all carbon and hydrogen atoms! 1. (2) Structure #1 IP 3 1. (1) For structure #2 L = lactose; S = sucrose, give the full name of this molecule: 2. (3) Structure #3 A = 1-linolenoyl-2-stearoyl phosphatidyl ethanolamine 3. B = 1-linoleoyl-2-palmitoyl phosphatidyl choline (4) Structure #4 C = pUppAp; D = pCppdGp 1. (2) Puzzler. What would be the full name of the products if structure #4 were treated with RNase A? 1. Circle the RNA type which is specified on the first page: M R SN T 2. (0.3) Give the full and complete name [no abbreviations]: 1. (0.2) Give the approximate % composition within the typical cell: 2. (0.5) Give the sizes or size range of this type of RNA in units of bases: 3. (2) Give a full and complete description of its function with the cell [This is more than just one word or one phrase! Look at the amount of space that you have and the number of points that this question is worth. Don't forget to include the cellular location of what you are describing. You will be graded on the basis of key words and clarity of English]: 4.
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