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Practice_Exam_III

Practice_Exam_III - Name BIOL 50 Practice Exam III The last...

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Name_______________________________ Student I.D.______________________ BIOL 50 Practice Exam III The last page has a copy of the genetic code. 1. (3 points each) For each of the following terms, write a definition or description of function (a single sentence is fine) : a. Sigma Factor b. Spliceosome c. enhancer d. intron e. Operator Page 1 of 5
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Name_______________________________ Student I.D.______________________ BIOL 50 Practice Exam III 2. O C C H H N H H N C C C N C O O O O P O O O P O O O P O H CH 2 OH H H H H C C a. (5 points) What is name of the molecule drawn above? b. (2 points) Circle the 3’ and 5’ carbons . Label which is 3’ and which is 5’. c. (2 points) Draw a square around all hydrogens involved in hydrogen bonding between base pairs. Page 2 of 5
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Name_______________________________ Student I.D.______________________ BIOL 50 Practice Exam III 3. The first seven amino acids in human beta-hemoglobin are: m e t – v a l – h i s – t r p – t h r – p r o – a s p a) (5 points) Write the mRNA sequence encoding this part of the polypeptide. In cases of degeneracy, indicate all possible bases by using N to represent any of the four bases, R
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