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Processes & Steps of DNA Replication Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Why is the enzyme DNA ligase is required continuously during DNA replication?

Question 2 2. DNA polymerase extends a polynucleotide strand by doing what?

Question 3 3. What is the cellular process in which a new copy of DNA is created?

Question 4 4. Why are Okazaki fragments necessary?

Question 5 5. Which enzyme is responsible for binding Okazaki fragments together?

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Question 6 6. What is the purpose of the RNA primer?

Question 7 7. Why can't DNA polymerase work continuously on both parent strands?

Question 8 8. Which enzyme is responsible for laying down the daughter nucleotides during DNA replication?

Question 9 9. When DNA helicase separates the two parental strands, it creates a Y-shape called a _____.

Question 10 10. What is the name of the enzyme that unwinds the DNA prior to replication?

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Question 11 11. Where are hydrogen bonds located within the DNA?

Question 12 12. How is the N-15 isotope different from the N-14 atom?

Question 13 13. The replication of DNA is a complex process; all of the following statements are correct, EXCEPT

Question 14 14. Because hydrogen bonds are weak bonds, they create a perfect site for _____.

Question 15 15. Which is the enzyme that attaches daughter nucleotides to the parent strand during DNA replication?

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Question 16 16. Which of the following BEST explains the role of DNA polymerase?

Question 17 17. Why does N-15 DNA sink to a lower level than N-14 in a centrifuge tube?

Question 18 18. In which method of DNA Replication would all parent DNA be conserved in the original molecule?

Question 19 19. If Meselson and Stahl had observed one intermediate, slightly smeared band after growing bacteria for one generation, and then after two generations again had found one slightly smeared band, they would most likely have concluded that DNA replicates in what manner?

Question 20 20. What are the small components (monomers) that make up the large DNA polymer?

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Question 21 21. Who performed the experiment that proved semi-conservative DNA replication was correct?

Question 22 22. In which method of DNA Replication would new DNA consist of alternating parent and daughter DNA?

Question 23 23. Why is it necessary that the DNA helicase unwinds the DNA?

Question 24 24. Which one of the following molecules carries the genetic information which is transferred from one generation to the next in eukaryotes?

Question 25 25. How many rounds of DNA Replication were needed to disprove the Conservative method?

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Question 26 26. What molecules serve to replicate DNA in the cell?

Question 27 27. Which of the following is the correct order of events for synthesis of the lagging strand?

Question 28 28. The Dispersive method of DNA Replication was disproved when the scientists observed...

Question 29 29. The structure of the DNA molecule is described as what kind of molecular model?

Question 30 30. According to the base pair rules identified by Erwin Chargaff, which of the following statements is true?

Processes & Steps of DNA Replication Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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