Test Bank Genetics A Conceptual Approach 7th edition Benjamin A. Pierce

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Test Bank Genetics A Conceptual Approach 7th edition Benjamin A. Pierce

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Test Bank Genetics A Conceptual Approach 7th edition Benjamin A. Pierce

 

1. Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people. However, the trait occurs at a frequency of 1 in 200 in certain Hopi villages of Black Mesa in Arizona. Explain in terms of natural selection why albinism is so rare in most human populations.

 

 

 

 

2. Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people. However, the trait occurs at a frequency of 1 in 200 in certain Hopi villages of Black Mesa in Arizona. Explain in terms of natural selection why the trait is so much more common among the Hopis of Black Mesa.

 

 

 

 

3. Which one of the following pairings between the subdiscipline of genetics and the phenomenon is INCORRECT?

 

 

 

 

 

4. Which one of the following topics of research belongs to the discipline of transmission genetics?

 

 

 

 

 

5. The complete genetic makeup of an organism is referred to as its

 

 

 

 

 

6. Identify a TRUE statement from the following descriptions concerning genetics.

 

 

 

 

 

7. Identify a FALSE statement from the following descriptions of genetics.

 

 

 

 

 

8. Which of the following species is considered a model genetic organism?

 

 

 

 

 

9. Which of the following would serve the LEAST well as a model for understanding basic mechanisms of inheritance?

 

 

 

 

 

10. Which of the following statements is TRUE?

 

 

 

 

 

11. Which of the following statements is CORRECT?

 

 

 

 

 

12. Which of the following traits would make a species useful as a model genetic organism? (Select all that apply.)

 

 

 

 

 

13. Which one of the following topics belongs to a different subdiscipline of genetics when compared with the rest?

 

 

 

 

 

14. The fruit fly Drosophila melanogaster is an important model system for studying inheritance in animals and genetic control of animal development, including humans. If researchers ultimately want to understand a biological process in humans, why might they want to study the process in fruit flies first? (Select all that apply.)

 

 

 

 

 

15. The complete genetic makeup of any organism is referred to as a

 

 

 

 

 

16. A change in allele frequency within a population over time leads to

 

 

 

 

 

17. Assume that a geneticist is doing a study with a wild mouse species. She captures 100 of these mice, takes a DNA sample from each, and sequences the same specific gene from each mouse. This gene has two alleles within this population. She then calculates the frequency of each of the two alleles from the sequencing results. Which subdivisions of genetics would this study include?

 

 

 

 

 

18. Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people. However, the trait occurs at a frequency of 1 in 200 in certain Hopi villages of Black Mesa in Arizona. In light of this example and others that you might be aware of, what can you conclude about particular alleles such as the allele for albinism?

 

 

 

 

 

19. The fruit fly Drosophila melanogaster is an important model system for studying inheritance in animals and genetic control of animal development, including humans. Evaluate fruit flies as a model system for human biology. What are their strengths and weaknesses as a model system?

 

 

 

 

20. What common features of heredity suggest that all life on Earth evolved from a common ancestor?

 

 

 

 

21. Why might bacteria and viruses be good model organisms for studying the basics of inheritance? Describe two advantages over studying genetics in mice, dogs, or humans.

 

 

 

 

22. Many good ideas in science ultimately turn out to be incorrect, and this has happened several times in the history of genetics. In your own words, state one idea in the history of genetics that turned out to be incorrect.

 

 

 

 

23. Many good ideas in science ultimately turn out to be incorrect, and this has happened several times in the history of genetics. Why do you think a particular idea was widely accepted by scholars of that time? Include in your answer some evidence in favor of the idea, observations that seemed to support the idea, or other rationale for accepting the idea.

 

 

 

 

24. Many good ideas in science ultimately turn out to be incorrect, and this has happened several times in the history of genetics. Summarize the evidence that ultimately caused an idea to be rejected by modern geneticists.

 

 

 

 

25. Describe one way in which discoveries in genetics currently impact your daily life apart from this course.

 

 

 

 

26. Describe one way in which discoveries in genetics will likely impact your life in the future.

 

 

 

 

27. Describe a discovery in genetics or an area of current research that you are concerned about that might have a negative impact on your life in the future. Explain why you think it might have a negative impact on you personally.

 

 

 

 

28. The experiments of Gregor Mendel can be placed into which subdivision of genetics?

 

 

 

 

 

29. Among the model genetic organisms, Escherichia coli, a single-celled bacterium, is a prokaryote; Saccharomyces cerevisiae, one-celled yeast, is a eukaryote, as are Caenorhabditis elegans, a multicellular nematode worm, and Arabidopisis thaliana, a multicellular plant. Which of these organisms would NOT contain membrane-bound organelles?

 

 

 

 

 

30. In the late 1990s, what important discovery in genetics was made?

 

 

 

 

 

31. CRISPR/Cas9 is a powerful new method that allows

 

 

 

 

 

32. The golden mutation in the zebrafish was useful because of which of the following results?

 

 

 

 

 

33. What commonsense observation makes the theory of preformationism unlikely?

 

 

 

 

 

34. What commonsense observation makes the theory of acquired characteristics UNLIKELY?

 

 

 

 

 

35. Which of the following theories of inheritance is currently considered TRUE?

 

 

 

 

 

36. Which of the following theories of inheritance is no longer accepted as TRUE?

 

 

 

 

 

37. Which of the following CORRECTLY describes the cell theory?

 

 

 

 

 

38. Which of the following examples of scientists and their contribution is matched INCORRECTLY?

 

 

 

 

 

39. Choose the correct match between the scientists and the field of genetics to which they contributed.

 

 

 

 

 

40. The first complete DNA sequence of a nonviral, free-living organism was obtained for

 

 

 

 

 

41. The three-dimensional structure of DNA was first deciphered based on the work of which of the following individuals? (Select all that apply.)

 

 

 

 

 

42. Which of the following scientists contributed significantly to the foundations of population genetics?

 

 

 

 

 

43. Which of the following scientists contributed significantly to the foundations of molecular genetics?

 

 

 

 

 

44. Which of the following scientists contributed significantly to the foundations of transmission genetics?

 

 

 

 

 

45. The contribution Charles Darwin made to biology was to

 

 

 

 

 

46. Which of the following combines molecular biology and computer science?

 

 

 

 

 

47. What commonsense observation makes the theory of blending inheritance unlikely?

 

 

 

 

 

48. List and describe two significant events in the history of genetics that occurred during the twentieth century.

 

 

 

 

49. Write a paragraph explaining why genetics is considered a young science, even though people have been applying genetic principles for thousands of years.

 

 

 

 

50. A measurable or observable trait or characteristic is called a

 

 

 

 

 

51. Genetic information can be carried in which of the following biomolecules?

 

 

 

 

 

52. Which of the following sequences CORRECTLY shows the flow of genetic information during gene expression?

 

 

 

 

 

53. The contribution of Gilbert and Sanger to modern genetics was to

 

 

 

 

 

54. Which of the following pairs is a part of a single nucleotide?

 

 

 

 

 

55. A form of a gene that has a slightly different sequence than other forms of the same gene but encodes the same type of an RNA or protein is called a(n)

 

 

 

 

 

56. _____ is a change in allele frequency of a population over time.

 

 

 

 

 

57. Permanent, heritable changes in genetic information (DNA) are called

 

 

 

 

 

58. Within cells, genes are located on structures called

 

 

 

 

 

59. Which of the following statements is FALSE concerning prokaryotic cells?

 

 

 

 

 

60. Which of the following statements is the CORRECT definition of meiosis?

 

 

 

 

 

61. Assume that a mutation occurs within a gene within an individual fruit fly. What will be the most likely series of consequences of this mutation?

 

 

 

 

 

62. How do DNA and RNA differ?

 

 

 

 

 

63. Which features distinguish a prokaryotic cell from a eukaryotic cell?

 

 

 

 

64. Identify a TRUE statement.

 

 

 

 

 

65. Though humans are the subject of intense genetic investigation, Homo sapiens are not generally considered a model genetic organism. Why not? Does this make sense?

 

 

 

 

66. What powerful piece of evidence suggests a genetic modification led to snakes developing without limbs?

 

 

 

 

 

 

 

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