Practice Exam 2

Practice Exam 2 - BIOL104 Exam 2 (10/12/09) Name Section:...

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BIOL104 Exam 2 (10/12/09) Name Section: 11:00 am 12:00 pm A-1 READ THIS FIRST! Please clear your desk of everything except for #2 pencils, erasers, your student ID, the exam, and the scantron form. If you have a question, please remain in your seat and raise your hand. Dr. Shornick will come to you to answer your question. All cell phones and other electronic devices must be put away. Use of these devices will be considered a violation of academic integrity. If you are observed communicating with another student during the exam, or if your eyes are observed wandering in the direction of another student's exam, these behaviors will be noted, and your exam grade will be in jeopardy. Academic honesty is taken seriously by the College of Arts and Sciences. Faculty members are required to report probable violations of academic integrity to their department chairs and to the Dean's office. All questions on this exam are in multiple-choice format. For each question, select the answer that BEST answers the question or completes the statement. Record your answer on the scantron sheet. Only the answers that are recorded on the scantron sheet will be considered. You will not receive credit for anything you write on the exam itself. When you are finished, you will hand in both the printed exam and your Scantron form and show your student ID. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The number of cells produced by meiosis is _____________ the number of cells produced by mitosis. A) one-fourth B) half C) equal to D) twice E) four times 2) The number of chromosomes in daughter cells produced by meiosis is ____________ the number of chromosomes in daughter cells produced by mitosis. A) one-fourth B) half C) equal to D) twice E) four times 3) Which of the following is unique to meiosis? A) Crossing over B) Nuclear membrane breaks down C) DNA organizes into chromosomes D) chromosomes align along the central plate of the cell 4) Daughter cells produced by meiosis are identical. A) True B) False 5) Chromosome duplication occurs prior to both mitosis and meiosis A) True B) False 6) Endergonic reactions occur in the cell thanks to "energetic coupling". Choose the statement that best describes the concept of energetic coupling. A) ATP activates an enzyme or substrate in the reaction, by transferring a phosphate group to it. B) The endergonic reaction is coupled with breaking of a glucose molecule, which releases energy that is immediately necessary for the reaction. C) NADH activates an enzyme or substrate in the reaction, by transferring two electrons to it. D) The electron transfer chain complexes move protons across the inner mitochondrial membrane while transferring electrons from one complex to another.
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BIOL104 Exam 2 (10/12/09) Name Section: 11:00 am 12:00 pm A-2 7) The alleles found in haploid organisms cannot be dominant or recessive. Why? A) Dominance and recessiveness describe interactions between two alleles of the same gene in the same individual.
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This note was uploaded on 05/03/2011 for the course BIOL 104 taught by Professor Bray-speth during the Fall '11 term at Saint Louis.

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Practice Exam 2 - BIOL104 Exam 2 (10/12/09) Name Section:...

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