Auburn Chapter 12
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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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