Which Of The Following Would Be Transcribed Into Mrna

Question: Transformation of bacteria was shown to occur when _______ bacteria were injected into mice

and the mice ______.

1. live S strain; died

2. B. live R strain; didn’t die

3. C. live S and R strain; died

4. D. live R strain and dead S strain; died

5. E. live S strain and dead R strain; didn’t die

6. Answer: D. live R strain and dead S strain; died

7. Question: DNA was shown to be the transforming substance when only the ______ enzymes could inhibit

8. transformation.

9. A. proteinase

10. B. RNAase

11. C. DNAase

12. D. lipase

13. Answer: C. DNAase

14. Question: If a DNA sample contains 13% adenine, what percentage of the sample contains cytosine?

15. A. 13%

16. B. 37%

17. C. 26%

18. D. 74%

19. Answer: B. 37%

20. Question: One of Chargaff’s rules states that

21. A. A + G = T + C.

22. B. A = C, T = G.

23. C. A = G, T = C.

24. D. A + T = G + C.

25. Answer: A. A + G = T + C.

26. Question:

27. Answer: A. indicating that DNA has a double helix structure.

28. Question: In the Watson and Crick model of DNA, the “steps” of the ladder are composed of

29. A. sugars.

30. B. a purine and a pyrimidine.

31. C. two purines.

32. D. two pyrimidines.

33. E. a sugar and a phosphate molecule.

34. Answer: B. a purine and a pyrimidine.

35. Question:

36. Answer: D. All of the choices describe how Pauling’s model was different than Watson and Crick’s model.

37. Question:

38. Answer: B. genes have no difficulty crossing the species

39. barrier

40. Question:

41. Answer: B. Replication occurs as each base is paired with another exactly like it.

42. Question: Nucleotides contain all of the following except:

43. A. a phosphate group

44. B. a 5 - carbon sugar

45. C. a nitrogen base

46. D. histones

47. E. A and C

48. Answer: D. histones