CCR Biology - Chapter 8 Practice Test - Summer 2012



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Name: Class: Date: CCR Biology - Chapter 8 Practice Test - Summer 2012 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What did Hershey and Chase know about bacteriophages that led them to use these viruses in their DNA experiments? a. Bacteriophages are mostly DNA and protein. b. Sulfur in all bacteriophages is radioactive. c. Protein from bacteriophages enters bacteria. d. Bacteriophages have no DNA of their own. 2. Which scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA? a. Martha Chase b. Oswald Avery c. Frederick Griffith d. Alfred Hershey 3. Figure 8.1 shows a single strand of DNA. Choose the first three nucleotides of the other DNA strand. a. GGT b. CCT c. GGC d. TTA 4. The main difference between the four nucleotides that make up DNA is that they have different a. sugars. b. uracil. c. bonds. d. bases. 5. Which scientists figured out the three-dimensional structure of DNA by using a model of metal and wood? a. Hershey and Chase b. Watson and Crick c. Pauling and Franklin d. Chargaff and Griffith 6. In humans, where does DNA replication take place? a. cytoplasm b. ribosome c. nucleus d. vacuole 1

Name: 7. During replication, the function of the enzyme DNA polymerase is to a. bind nucleotides together. b. send messages. c. send messages. d. locate replication sites. 8. Figure 8.2 shows a single strand of DNA. Choose the first three nucleotides of the complementary RNA strand. a. AUT b. CTA c. AUC d. ACG 9. During transcription, what does messenger RNA do? a. It delivers DNA's instructions for making proteins. b. It constructs proteins out of random amino acids. c. It strings together two complementary RNA strands. d. It strings together two complementary RNA strands. 10. In order to produce all the protein that a cell needs, transcription takes place a. on a gene segment over and over again. b. on a gene segment over and over again. c. using double-stranded RNA. d. using double-stranded RNA. 11. The central dogma states that information flows from a. RNA to DNA to polysaccharides. b. DNA to RNA to proteins. c. DNA to RNA to proteins. d. DNA to polysaccharides to RNA. 12. How many amino acids are coded for by the strand of mrna shown below? Assume the reading frame begins with the first nucleotide. CGAUAC a. 1 b. 2 c. 3 d. 6 13. Where is messenger RNA "edited" into its final form? a. in the ribosomes b. in the ribosomes c. in the nucleus d. in the anticodon 2

Name: 14. What is the term for the sections of messenger RNA that are spliced together during processing? a. operators b. promotors c. exons d. introns 15. In bacteria, what binds with the repressor to activate the lac operon? a. enzymes b. lactose c. repressors d. promoters Multiple Choice 16. Which scientist used chemical analysis to show that the genetic material in bacteria is DNA? a. Martha Chase b. Oswald Avery c. Frederick Griffith d. Alfred Hershey 17. How did Hershey and Chase's use of radiolabeled bacteriophages to study the genetic material validate Avery's research? a. It demonstrated conclusively that the genetic material is not protein. b. It showed that bacteriophages are not digested by bacterial enzymes. c. It proved that bacteria will take up phosphorus, but not sulfur. d. It confirmed that bacteriophages cannot inject radiolabeled DNA. 18. Figure 8.1 shows a single strand of DNA. Identify the nucleotide sequence of the other DNA strand. a. GGCUTGU b. AATGCAG c. GGCATGA d. TTACGTC 19. The DNA double helix model used today is the product of research done by scientists a. Hershey and Chase. b. Watson and Crick. c. Pauling and Franklin. d. Chargaff and Griffith. 20. Suppose you can read the sequence of bases on only one strand of the double helix. What would you use to figure out the sequence on the other strand? a. central dogma b. x-ray crystallography c. Chargaff's rules d. base pairing rules 3

Name: 21. Which of the following is the site of DNA replication in eukaryotes? a. cytoplasm b. ribosome c. nucleus d. vacuole 22. What does DNA polymerase do during replication? a. binds nucleotides together and corrects base pair errors b. transmits messages that are translated into proteins c. attracts amino acids to the ribosomes for assembly d. recognizes and points out new origins of replication 23. Figure 8.2 shows a single strand of DNA. Identify the nucleotide sequence of the complementary RNA strand. a. ATUTUAG b. CAAGACT c. AUCUCAG d. ATCTCAG 24. What "message" does mrna carry? a. the genetic code that, when translated, forms proteins b. orders for making ribosomes, a cell's protein factories c. the order of base pairs in complementary RNA strands d. the number of codons in an individual reading frame 25. When does replication occur? a. once in every cell cycle b. when nucleotides float in the nucleus c. during the cell's M phase d. when trna unzips DNA 26. Crick's central dogma of molecular biology is essentially a summary of a. base pairing rules for all nucleotides. b. genetic code stored in all start codons. c. amino acid relationships to ribosomes. d. replication, transcription, and translation. 27. How many amino acids are coded for in the following sequence of mrna nucleotides? Assume the reading frame begins with the first nucleotide. CGAUACAGUAGC a. 3 b. 4 c. 6 d. 12 4

Name: 28. When does mrna processing take place? a. after replication b. after translation c. after transcription d. after protein synthesis 29. The nucleotide sequences that are removed during mrna processing are called a. operators. b. promotors. c. exons. d. introns. 30. The lac operon is an example of how gene regulation occurs in a. yeasts. b. bacteria. c. humans. d. eukaryotes. 5

CCR Biology - Chapter 8 Practice Test - Summer 2012 Answer Section MULTIPLE CHOICE 1. ANS: A PTS: 1 DIF: Level A REF: act0976aaf18007e124_14 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.5.1.5 KY 9-12.5.2.7 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 2. ANS: B PTS: 1 DIF: Level A REF: act0976aaf18007e124_22 STA: KY 9-12.5.1.5 KY 9-12.5.2.7 TOP: Ch 8 Test - A 3. ANS: C PTS: 1 DIF: Level A REF: act0976aaf18007e124_30 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 4. ANS: D PTS: 1 DIF: Level A REF: act0976aaf18007e124_46 STA: KY 9-12.1.2.1 KY 9-12.4.1.2 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.7 KY 9-12.6.1.7 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 5. ANS: B PTS: 1 DIF: Level A REF: act0976aaf18007e124_38 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.5.1.5 KY 9-12.5.2.7 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 6. ANS: C PTS: 1 DIF: Level A REF: act0976aaf18007e124_54 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 7. ANS: A PTS: 1 DIF: Level A REF: act0976aaf18007e124_62 STA: KY 9-12.1.2.1 KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.7 KY 9-12.6.1.7 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 8. ANS: C PTS: 1 DIF: Level A REF: act0976aaf18007e124_70 STA: KY 9-12.4.1.7 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b TOP: Ch 8 Test - A 9. ANS: A PTS: 1 DIF: Level A REF: act0976aaf18007e124_79 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.2.1 KY 9-12.4.2.3 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.1 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 10. ANS: A PTS: 1 DIF: Level A REF: act0976aaf18007e124_87 STA: KY 9-12.4.1.7 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 11. ANS: B PTS: 1 DIF: Level A REF: act0976aaf18007e124_95 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.2.1 KY 9-12.4.2.3 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.1 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - A 12. ANS: B PTS: 1 DIF: Level A REF: act0976aaf18007e124_103 STA: KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b TOP: Ch 8 Test - A 1

13. ANS: C PTS: 1 DIF: Level A REF: act0976aaf18007e124_111 STA: KY 9-12.4.1.2 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b TOP: Ch 8 Test - A 14. ANS: C PTS: 1 DIF: Level A REF: act0976aaf18007e124_119 STA: KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b TOP: Ch 8 Test - A 15. ANS: B PTS: 1 DIF: Level A REF: act0976aaf18007e124_127 TOP: Ch 8 Test - A 16. ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e125_14 STA: KY 9-12.5.1.5 KY 9-12.5.2.7 TOP: Ch 8 Test - B 17. ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e125_22 STA: KY 9-12.4.2.9 KY 9-12.4.2.10 KY 9-12.5.1.5 KY 9-12.5.2.7 18. ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e125_30 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.6 19. ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e125_39 STA: KY 9-12.4.1.2 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.5.1.5 KY 9-12.5.2.7 20. ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e125_47 STA: KY 9-12.4.1.2 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 21. ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e125_55 STA: KY 9-12.4.1.2 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.6 22. ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e125_63 STA: KY 9-12.1.2.1 KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.1.7 KY 9-12.4.2.1 KY 9-12.4.2.7 KY 9-12.6.1.7 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - B 23. ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e125_71 STA: KY 9-12.4.1.7 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b 24. ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e125_80 STA: KY 9-12.4.1.2 KY 9-12.4.1.3 KY 9-12.4.2.1 KY 9-12.4.2.3 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.1 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b KY 9-12.SC-HS-3.4.6 25. ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e125_88 STA: KY 9-12.4.1.7 KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - B 26. ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e125_96 STA: KY 9-12.4.1.7 KY 9-12.4.2.6 KY 9-12.5.1.5 KY 9-12.5.2.7 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b KY 9-12.SC-HS-3.4.6 TOP: Ch 8 Test - B 27. ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e125_104 2

28. ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e125_112 STA: KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b 29. ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e125_120 STA: KY 9-12.4.2.6 KY 9-12.SC-HS-3.4.3.a KY 9-12.SC-HS-3.4.3.b 30. ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e125_128 3

CCR Biology - Chapter 8 Practice Test - Summer 2012 [Answer Strip] _ A 7. _ C 14. _ C 21. _ C 28. _ A 1. _ C 8. _ B 15. _ A 22. _ D 29. _ B 2. _ B 16. _ C 23. _ B 30. _ A 9. _ C 3. _ A 17. _ A 10. _ A 24. _ C 18. _ D 4. _ B 11. _ A 25. _ B 5. _ B 12. _ B 19. _ D 26. _ C 6. _ C 13. _ D 20. _ B 27.

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