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Structure & Replication of DNA 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!

Page 1

Question 1 1. Because the same codons specify the same amino acids in nearly all organisms, we say that the genetic code is _____.

Question 2 2. Why can we manufacture insulin for humans with bacteria?

Question 3 3. Which of the following is the process of decoding RNA as instructions for building an amino acid chain?

Question 4 4. How many basic types of nucleic acids exist?

Question 5 5.

Which of the following are reasons why RNA is generally less stable than DNA?

I. Fewer hydrogen bonds

II. Prevalence of proteins that can degrade RNA

III. Fewer -OH groups in the sugar

Page 2

Question 6 6. Which of the following is the process of transferring genetic information from DNA to RNA?

Question 7 7. DNA consists of four different nitrogenous bases, which are:

Question 8 8.

Which of the following is a primary function of a nucleic acid?

I. Structural support

II. Storage of information

III. Energy storage

Question 9 9. Which of the following is NOT one of the nitrogenous bases found in DNA?

Question 10 10. What is the term for a distinct section of DNA that codes for one protein?

Page 3

Question 11 11. Which of the following describes an increase in gene expression?

Question 12 12. Which of the following describes a group of related genes in a prokaryote's DNA?

Question 13 13. Why do DNA strands need to be antiparallel?

Question 14 14. What kind of organism was used to investigate the method of DNA Replication?

Question 15 15. Who performed the experiment that proved semi-conservative DNA replication was correct?

Page 4

Question 16 16. In which method of DNA Replication would new DNA consist of alternating parent and daughter DNA?

Question 17 17. A nucleic acid monomer is called:

Question 18 18. A scientist identifies two different structures that both specify the same amino acid. How would the scientist describe these structures?

Question 19 19. Which of the following terms encompasses all the cellular activities involved in building protein molecules?

Question 20 20. The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.

Page 5

Question 21 21. The Dispersive method of DNA Replication was disproved when the scientists observed...

Question 22 22. All of the following statements are true, EXCEPT:

Question 23 23. While studying for an upcoming test, your friend Jane tells you that prokaryotic cells process their RNA in the nucleus. Is this a correct statement? Why or why not?

Question 24 24. The ability of codons to match with the appropriate amino acids is called _____.

Question 25 25. Which of these statements isn't true?

Page 6

Question 26 26. The lac operon codes for the enzyme that help digest the sugar _____.

Question 27 27.

Which of the following are ways in which RNA is different than DNA:

I. Single-stranded

II. Ribose

III. Number of nitrogenous bases

Question 28 28. What does DNA stand for?

Question 29 29. Which of the following forms the backbone of a DNA molecule?

Question 30 30. In which method of DNA Replication would all parent DNA be conserved in the original molecule?

Structure & Replication of DNA 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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