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Auburn Chapter 12

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Question
Answer
show DNA  
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show The mice developed pneumonia  
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3. What would Hershey and Chase have concluded if both radioactive 32P and 35S were found in the bacteria in their experiment?   show
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5. Which of the following is a nucleotide found in DNA?   show
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show pyrimidines in DNA is about equal to the percentage of purines.  
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7. In eukaryotes, DNA   show
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show nucleosomes become more tightly packed.  
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9. Which of the following include all the others?   show
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show replication.  
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show each with one new strand and one original strand.  
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show GATCCA  
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13. RNA contains the sugar   show
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14. Unlike DNA, RNA contains   show
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15. Which of the following are found in both DNA and RNA?   show
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16. How many main types of RNA are there?   show
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17. Which type(s) of RNA is(are) involved in protein synthesis?   show
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show mRNA, tRNA, and rRNA  
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show RNA molecules  
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show inside the nucleus  
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21. Which of the following statements is true?   show
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23. How many codons are needed to specify three amino acids?   show
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24. Why is it possible for an amino acid to be specified by more than one kind of codon?   show
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show The cell uses information from messenger RNA to produce proteins.  
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show intron  
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27. During translation, the type of amino acid that is added to the growing polypeptide depends on the   show
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show proteins  
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29. Which type of RNA functions as a blueprint of the genetic code?   show
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30. Which of the following statements is false?   show
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31. A mutation that involves one or a few nucleotides is called a(an)   show
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32. Which of the following is NOT a gene mutation?   show
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show substitution  
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show binding site for RNA polymerase  
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35. Which of the following statements is true?   show
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36. If a specific kind of protein is not continually used by a cell, the gene for that protein is   show
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37. In E. coli, the lac operon controls the   show
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show binding to the operator.  
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39. When E. coli is grown on glucose,   show
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show operon  
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show allows for cell specialization.  
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42. Specialized cells regulate the expression of genes because they   show
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43. Hox genes determine an animal’s   show
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show Hox genes that are found in different animals are very different from each other.  
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show determine the location of a dog’s ears.  
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show False  
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show False  
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48.In eukaryotes, DNA replication proceeds in one direction along the DNA molecule.   show
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show False  
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show True  
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51. During DNA replication, only one strand of DNA serves as a template.   show
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52. A codon consists of four nucleotides.   show
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53. The anticodon AGA is complementary to the codon TCT.   show
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show False  
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55. DNA codes for DNA polymerase.   show
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56. Without regulatory sites, the expression of a gene would not be controlled.   show
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57. In prokaryotes, an operon is a group of genes that are operated together.   show
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show False  
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show True  
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show False  
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61. The structure labeled X in Figure 12–1 is a(an)   show
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62. The Watson and Crick model of DNA is a(an) _________________________, in which two strands are wound around each other.   show
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63. Chromatin contains proteins called   show
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64. In RNA, ____________________ and ____________________ are pyrimidines.   show
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65. In Figure 12–3, A, B, and C are three types of   show
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66. During transcription, the _________________________ between base pairs are broken.   show
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show amino acids  
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68. There is no ____________________ that is specified by a stop codon on an mRNA molecule.   show
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69. The ____________________ of a tRNA molecule determines the type of amino acid that bonds with the tRNA.   show
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show substitution  
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show stop codon  
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show promoter  
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show lactose  
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74. In eukaryotes, proteins that attract RNA polymerase bind to ____________________ sequences in DNA.   show
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show DNA molecule.  
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22. What does Figure 12–2 show?   show
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