Test%203%20-practice

Test%203%20-practice - PCB3134 - Test 3 Fall, 2006...

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PCB3134 - Test 3 Fall, 2006 DIRECTIONS 1. Enter your name and UFID number on your answer sheet, BOTH PRINTED &FILL IN THE BUBBLES . Please use pencil. 2. Enter the five-digit test code in slots 76-80 of your answer sheet. The test code can be found at the bottom of each page on your test. IT IS IMPORTANT THAT THIS IS DONE CORRECTLY OR YOUR TEST CANNOT BE GRADED!!! 3. Answer each question with the ONE BEST answer. 4. Turn in your answer sheet when you have finished. 5. KEEP YOUR TEST SO THAT YOU WILL HAVE THE TEST CODE NUMBER . Grades will be posted by test code number. --------------------------------------------------------------------------------------------------------------------------------- ---------------------------------- READ EACH QUESTION CAREFULLY . Select the BEST ANSWER . If you do not understand the question, you may ask the instructor for clarification. --------------------------------------------------------------------------------------------------------------------------------- ---------------------------------- 1. What is the major determinant of RNA folding? (1) van der Waals forces (2) formation of complementary base pair regions (3) ionic bonds (4) hydrophobic interactions (5) hydroponic interactions 2. When a transponson is inserted into a recipient DNA, _______ is produced at the site of insertion. (1) a deletion in the recipient DNA (2) a single-strand DNA (3) a direct repeat in the recipient DNA (4) a deletion in the transposon (5) a inverted repeat in the transposon 3. The temperature at which the shift in absorbance in denaturing DNA is half completed is called ____. (1) denaturation temperature (2) renaturation temperature (3) Mt (4) melting temperature (5) none of the above 4. In the ER lumen, misfolded or incompletely folded proteins are recognized by _______. (1) calnexin (2) lipid transferase (3) glucosyltransferase (GT) (4) calmodulin (5) kinase 5. Which of the following oligosaccharide chains is assembled wholly in the Golgi complex? (1) N-linked oligosaccharides attached to serine residues (2) O-linked oligosaccharides attached to asparagine residues (3) O-linked oligosaccharides attached to serine residues
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(4) N-linked oligosaccharides attached to asparagine residues (5) none of the above 6. Where does the action potential pass after traveling down the T tubules? (1) the nucleus (2) sarcoplasmic reticulum (3) nowhere (4) to the neighboring muscle fiber (5) the Golgi complex
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7. You are studying two strands of DNA. They have exactly the same length but the first one has a very high G + C/A + T ratio of 3.1. The second DNA strand has a G + C/A + T ratio of 1.3.
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This note was uploaded on 04/17/2008 for the course PCB 3134 taught by Professor Multiple during the Spring '08 term at University of Florida.

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Test%203%20-practice - PCB3134 - Test 3 Fall, 2006...

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