Exam 3 - Biology 150 Fall, 2008 Third Exam Wilson Form 1...

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Biology 150 Fall, 2008 Third Exam Wilson Form 1 Part I: Give the single BEST answer to each question (2.5 points each). Use the answer sheet to record your answer. 1. Dideoxy nucleotides are used in: a. DNAsequence analysis b. Polymerase chain reaction (PCR) c. RFLP analysis d. making plasmids e. producing “sticky ends” on DNAs 2. Restriction enzymes: a. are made by bacteria b. are used in RFLP analysis c. produce “sticky ends” on DNAs d. both a and b, above, are correct e. all of the above are correct 3. Which of the following makes up the largest fraction of the human genome: a. telomeres b. coding regions for mRNA, rRNA and tRNA molecules c. repetitive DNA sequences, including transposons d. unique, non-coding DNA 4. Concerning evolution, which of the following is correct? a. a bat’s wing and a whale’s flipper have nothing in common b. Darwin was impressed by the fact that all of the Galapagos islands had the same species on them as on the mainland, and that contributed to the development of his ideas about evolution c. Lamarck had the right idea when he suggested the inheritance of acquired characteristics d. Before Darwin, others had recognized that species went extinct and that the Earth was much older than 6,000 years e. None of the above is correct 5. What does epinephrine do to the liver? a. nothing b. it acts as a hormone, stimulating the synthesis of glycogen from glucose c. it acts as a hormone, breaking down glycogen d. it acts through a signal transduction cascade that amplifies the signal e. both c and d, above, are correct 6. G-protein coupled receptors a. are involved in producing cyclic-AMP as a second messenger b. are involved in producing calcium as a second messenger c. are non-membrane proteins in the cytoplasm that bind to steroid hormones d. both a and b, above are correct e. both b and c, above, are correct 7. Calcium concentrations in the cytosol (cytoplasm) are low because: a. calcium is pumped out of the cell b. calcium is pumped into endoplasmic reticulum c. calcium is pumped into mitochondria d. all of the above are correct
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This note was uploaded on 12/01/2010 for the course PSY 110 taught by Professor Winters during the Spring '08 term at University of Miami.

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Exam 3 - Biology 150 Fall, 2008 Third Exam Wilson Form 1...

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