Agr 3303 Exam 2
AGR 3303 Genetics Exam 2 February 28, 2007
There are 25 questions and each correct response is worth 4 points. Please darken in the circles to spell your last name, FI, and MI and to record your UF ID and test code number. The test code number is located at the bottom of each page of your exam and should be recorded in the spaces provided for questions 76-80. Failure to correctly mark your the test code will result in a grade of 0 for your exam score. Once exams have been graded, your grade will be available through the class website ("exam grades" link). You will need your test code number to access your grade so keep your copy of the exam. Be sure to use a #2 pencil to mark the grade sheet or the computer will not be able to properly grade your exam. Make sure you densely mark the circle corresponding to your choice and make all erasures complete. When you have completed your exam, turn in your scan sheet at the front of the room.
1. The primary structure of a protein represents: (*) the amino acid sequence. (2) the functional configuration. (3) the subunits of a protein. (4) a pleated sheet. (5) a alpha helix. 2. In prokaryotes, most genes are organized into operons. One component of an operon is the structural genes. Which of the following best describes a structural gene? (*) a sequence of DNA that specifies a polypeptide. (2) a sequence of DNA that produces tRNA's. (3) a sequence of DNA that interacts with the small ribosomal subunit. (4) a sequence of DNA that is recognized by RNA polymerase. (5) a sequence of DNA that is involved in forming the structure of a double helix molecule. 3. Identify the correct sequence of steps in protein synthesis in prokaryotes: A - binding of large ribosomal subunit to initiation complex B - peptide bond formation C - binding of mRNA to small subunit of ribosome D - binding of charged tRNA to A site E - release of fmet-tRNA and translocation (1) B, C, A, D, E (2) B, E, C, A, D (3) C, E, B, A, D (*) C, A, D, B, E (5) C, D,
There are 25 questions and each correct response is worth 4 points. Please darken in the circles to spell your last name, FI, and MI and to record your UF ID and test code number. The test code number is located at the bottom of each page of your exam and should be recorded in the spaces provided for questions 76-80. Failure to correctly mark your the test code will result in a grade of 0 for your exam score. Once exams have been graded, your grade will be available through the class website ("exam grades" link). You will need your test code number to access your grade so keep your copy of the exam. Be sure to use a #2 pencil to mark the grade sheet or the computer will not be able to properly grade your exam. Make sure you densely mark the circle corresponding to your choice and make all erasures complete. When you have completed your exam, turn in your scan sheet at the front of the room.
1. The primary structure of a protein represents: (*) the amino acid sequence. (2) the functional configuration. (3) the subunits of a protein. (4) a pleated sheet. (5) a alpha helix. 2. In prokaryotes, most genes are organized into operons. One component of an operon is the structural genes. Which of the following best describes a structural gene? (*) a sequence of DNA that specifies a polypeptide. (2) a sequence of DNA that produces tRNA's. (3) a sequence of DNA that interacts with the small ribosomal subunit. (4) a sequence of DNA that is recognized by RNA polymerase. (5) a sequence of DNA that is involved in forming the structure of a double helix molecule. 3. Identify the correct sequence of steps in protein synthesis in prokaryotes: A - binding of large ribosomal subunit to initiation complex B - peptide bond formation C - binding of mRNA to small subunit of ribosome D - binding of charged tRNA to A site E - release of fmet-tRNA and translocation (1) B, C, A, D, E (2) B, E, C, A, D (3) C, E, B, A, D (*) C, A, D, B, E (5) C, D,