Question

11. The experiments by John Cairns confirmed that DNA replicates a) bidirectionally; b) semidiscontinuously; c) semiconservatively; d) discontinuously; e) two of the above; f) more than two of the above. 12. The experiments by Robert Okazaki confirmed that DNA replicates a) bidirectionally; b) semidiscontinuously; c) semiconservatively; d) discontinuously; e) two of the above; f) more than two of the above. 13. During replication in E. coli, the initial separation of double-helical DNA at the Origin is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator proteins; e) DNA polymerase III; f) DNA polymerase I. 14. During replication in E. coli, the construction of short RNA chains is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator protein; e) a RNA polymerase; f) two of the above. 15. The molecules constructed in question 14 above are a) SSB proteins; b) initiator proteins; c) primers; d) dAMP-dGMP-dCMP-dTMP chains; e) two of the above; f) none of the above. 16. Considering Chargaff's Rule, if 30% of double-helical DNA is comprised of dGMP, the percentage of dTMP would be a) 30%; b) 50%; c) 20%; d) 15%; e) can't be determined; f) none of the above. 17. Miescher found that the macromolecules in cell nuclei a) were void of sulfur; b) were acidic; c) were void of phosphorus; d) contained phosphorus; e) two of the above; f) more than two of the above. 18. Dawson found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above. 19. Griffith found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above. 20. X-ray diffraction studies on crystalline DNA were conducted by and identified the recurrent distances of for double-helical structure. a) Watson and Crick: 3.4, 34, 20 angstroms; b) Franklin and Wilkins: 3.4, 34, 20 angstroms; c) Franklin and Wilkins: 34, 20, .34 angstroms; d) Franklin and Watson: 34, 3.4, 20 angstroms; e) Hershey and Chase: 3.4, 34, 20 angstroms; f) none of the above.

          11. The experiments by John Cairns confirmed that DNA replicates
a) bidirectionally; b) semidiscontinuously; c) semiconservatively;
d) discontinuously; e) two of the above; f) more than two of the above.
12. The experiments by Robert Okazaki confirmed that DNA replicates
a) bidirectionally; b) semidiscontinuously; c) semiconservatively;
d) discontinuously; e) two of the above; f) more than two of the above.
13. During replication in E. coli, the initial separation of double-helical DNA at the Origin is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator proteins; e) DNA polymerase III; f) DNA polymerase I.
14. During replication in E. coli, the construction of short RNA chains is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator protein; e) a RNA polymerase; f) two of the above.
15. The molecules constructed in question 14 above are a) SSB proteins; b) initiator proteins; c) primers; d) dAMP-dGMP-dCMP-dTMP chains; e) two of the above; f) none of the above.
16. Considering Chargaff's Rule, if 30% of double-helical DNA is comprised of dGMP, the percentage of dTMP would be a) 30%; b) 50%; c) 20%; d) 15%; e) can't be determined; f) none of the above.
17. Miescher found that the macromolecules in cell nuclei a) were void of sulfur; b) were acidic; c) were void of phosphorus; d) contained phosphorus; e) two of the above; f) more than two of the above.
18. Dawson found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above.
19. Griffith found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above.
20. X-ray diffraction studies on crystalline DNA were conducted by ______ and identified the recurrent distances of ______ for double-helical structure.
a) Watson and Crick: 3.4, 34, 20 angstroms; b) Franklin and Wilkins: 3.4, 34, 20 angstroms; c) Franklin and Wilkins: 34, 20, .34 angstroms; d) Franklin and Watson: 34, 3.4, 20 angstroms; e) Hershey and Chase: 3.4, 34, 20 angstroms; f) none of the above.

$11. The experiments by John Cairns confirmed that DNA replicates a) bidirectionally; b) semidiscontinuously; c) semiconservatively; d) discontinuously; e) two of the above; f) more than two of the above. 12. The experiments by Robert Okazaki confirmed that DNA replicates a) bidirectionally; b) semidiscontinuously; c) semiconservatively; d) discontinuously; e) two of the above; f) more than two of the above. 13. During replication in E. coli, the initial separation of double-helical DNA at the Origin is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator proteins; e) DNA polymerase III; f) DNA polymerase I. 14. During replication in E. coli, the construction of short RNA chains is accomplished by the action of a) helicase; b) primase; c) SSB proteins; d) initiator protein; e) a RNA polymerase; f) two of the above. 15. The molecules constructed in question 14 above are a) SSB proteins; b) initiator proteins; c) primers; d) dAMP-dGMP-dCMP-dTMP chains; e) two of the above; f) none of the above. 16. Considering Chargaff's Rule, if 30% of double-helical DNA is comprised of dGMP, the percentage of dTMP would be a) 30%; b) 50%; c) 20%; d) 15%; e) can't be determined; f) none of the above. 17. Miescher found that the macromolecules in cell nuclei a) were void of sulfur; b) were acidic; c) were void of phosphorus; d) contained phosphorus; e) two of the above; f) more than two of the above. 18. Dawson found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above. 19. Griffith found a) that transformation occurred in vitro; b) that transformation occurred in vivo; c) the "transforming principle;" d) that heat-killed S cells were virulent; e) two of the above; f) more than two of the above. 20. X-ray diffraction studies on crystalline DNA were conducted by and identified the recurrent distances of for double-helical structure. a) Watson and Crick: 3.4, 34, 20 angstroms; b) Franklin and Wilkins: 3.4, 34, 20 angstroms; c) Franklin and Wilkins: 34, 20, .34 angstroms; d) Franklin and Watson: 34, 3.4, 20 angstroms; e) Hershey and Chase: 3.4, 34, 20 angstroms; f) none of the above.$

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