Biology 1710 Exam III F'03

Biology 1710 Exam III F'03 - Name:_ Exam III, Fall ,03...

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Name:_____________________________ Exam III, Fall ‘03 Remember to read all of the possible answers for each question before choosing the BEST ANSWER. 1. The process of making an RNA strand from a DNA template is called: a. phosphodiester synthesis. b. translation. c. transcription. d. replication. e. transition. 2. Diphtheria toxin kills cells by interfering with what essential process? a. DNA replication b. RNA synthesis c. protein synthesis d. membrane transport e. None of the above are correct answers. 3. The experiment which utilized 32 P, 35 S, E. coli and T2 bacteriophage to demonstrate that DNA was functioned as the genetic material in T2 was carried out by: a. Watson and Crick. b. Hershey and Chase. c. Franklin and Wilkins. d. Avery, McCarty and MacLeod. e. Messelson and Stahl. 4. Which of the following is an example of a purine? a. guanine b. ribose c. UTP d. CTP e. deoxyribose 5. In RNA molecules, ________ replaces (is substituted for) the thymine found in DNA. a. ribose b. cytosine c. adenine d. guanine e. deoxyribose
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6. Two strands in a DNA molelcule are held together by ____________. a. hydrogen bonds b. peptide bonds c. phosphodiester bonds d. aminoacyl linkages e. ionic bonds through the phosphates 7. The enzyme that eliminates primers during DNA replication is: a. DNA polymerase I. b. primase. c. DNA polymerase III. d. helicase. e. replicase. 8. Erwin Chargaff determined that: a. in DNA the amount of adenine equals the amount of thymine. b. DNA is a helix of uniform diameter. c. nucleotides contain a base, a sugar and a phosphate group. d. DNA is a double helix. e. DNA replication is semiconservative. 9. The codon AUG in protein synthesis is read as a. stop. b. start. c. an amino acid. d. release the polypeptide. e. start transcription here. 10. The region of a gene where the RNA polymerase binds to begin gene expression is called the: a. origin. b. ribosome binding site. c. promoter. d. initiator site. e. P site. 11. The complex of RNA and proteins that removes the intervening sequences from the primary RNA transcript as part of the process to produce a mature mRNA is called: a. a ribosome. b. RNA polymerase. c. an snRNA. d. a releasing factor. e. a splicesome.
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12. The process of making a polypeptide using an RNA template is called: a. aminoacyl synthesis. b. translation. c. transcription. d. replication. e. transition. . 13. The individual(s) who obtained the first X-ray diffraction data from DNA crystals was/were: a. Watson and Crick. b. Erwin Chargaff. c. Rosalind Franklin. d. P. A. Levine. e. Messelson and Stahl. 14. The 3’end of a eukaryotic mRNA has: a. an intron attached. b. a polyA tail attached. c. a cap. d. the tRNA attached to it. e.
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This note was uploaded on 04/25/2008 for the course BIOL 1710 taught by Professor Jag during the Fall '08 term at North Texas.

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Biology 1710 Exam III F'03 - Name:_ Exam III, Fall ,03...

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