BIO_111_FINAL_EXAM_Fall05[1]

BIO_111_FINAL_EXAM_F - BIO.111.FINAL EXAM-DISK 405 TEST COPY MORAINE VALLEY COMMUNITY COLLEGE BIO 111 – General Biology I FINAL EXAM Fall 2005

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Unformatted text preview: BIO.111.FINAL EXAM-DISK 405 TEST COPY________ MORAINE VALLEY COMMUNITY COLLEGE BIO 111 – General Biology I FINAL EXAM Fall 2005 Write the Test Copy number after your name on your answer sheet. Select the most appropriate answer. Please do not write on this exam. 1. DNA molecules have: a. a double helix structure. b. specific pairing of 4 different nitrogen bases. c. alternating sugar and phosphate units. d. All of the above. e. None of the above. 2. The structures in DNA that apparently serve the function of "genes" or as the source of coded information is/are the: a. phosphoric acid configuration. b. nitrogen bases and their sequence. c. structure of deoxyribose. d. ribose sequence. 3. Production of new DNA occurs in: a. several locations in the cell c. in the cytoplasm b. the nucleus d. in the ribosomes 4. Newly synthesized molecules of contain one old strand and one new strand. a. t-RNA b. r-RNA c. m-RNA d. DNA e. protein BIO 111, FINAL EXAM,BIO 111 / Disk 405 2 5. Which of the following is found in RNA, but not in DNA? a. adenine d. cytosine b. guanine e. thymine c. uracil 6. Which of the following would be found in DNA, but not in RNA? a. phosphate group d. nitrogen bases b. ribose e. all of these are present in c. deoxyribose both DNA and RNA 7. The double helix concept is that a molecule of DNA consists of: a. two chains in which each base (A,G,C,T) in one chain is paired with its opposite or complement (T,C,G,A) in the other chain. b. two chains in which each base in one chain is paired with the same one in the other chain. c. two chains, each of which is the mirror image of the other. d. a chain of nucleotides paired with and twisted with a chain of amino acids. 8. In the comparison of a DNA molecule to a twisted ladder, the uprights (sides) of the ladder would be: a. deoxyribose linked to phosphates. b. nitrogenous bases linked together. c. deoxyribose linked to sulfates. d. nitrogenous bases linked to phosphates. e. hydrogen bonds between the bases. 9. In the comparison of a DNA molecule to a twisted ladder, the rungs (steps) of the ladder would be: a. deoxyribose linked to phosphates. b. nitrogenous bases linked together. c. deoxyribose linked to ribose. d. nitrogenous bases linked to phosphates. 10. Nucleotides are composed of: a. phosphates. b. sugars. c. nitrogenous bases. d. all of the above. BIO 111, FINAL EXAM,BIO 111 / Disk 405 3 11. In DNA, the amount of cytosine is always equal to the amount of: a. adenine. c. guanine. b. uracil. d. thymine. 12. mRNA molecules carry __________ from the nucleus to the cytoplasm. a. ribosomal subunits d. introns b. amino acids e. all of the above c. protein assembly instructions 13. The correct sequence of events for protein synthesis is: a. DNA - tRNA - ribosome - mRNA - amino acid....
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This note was uploaded on 05/17/2010 for the course BIO 111 taught by Professor Osikanlu during the Spring '09 term at Moraine Valley Community College.

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BIO_111_FINAL_EXAM_F - BIO.111.FINAL EXAM-DISK 405 TEST COPY MORAINE VALLEY COMMUNITY COLLEGE BIO 111 – General Biology I FINAL EXAM Fall 2005

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