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DNA, RNA & Gene Expression 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. In both RNA and DNA, guanine bonds with which one of the following bases?

Question 2 2. Which of the following statements is true about the structure of RNA?

Question 3 3. What do we call the attraction that allows bases to pair with each other?

Question 4 4. Which of the following statements about tRNA and mRNA is correct?

Question 5 5. The codons UAU and UAC both code for the amino acid Tyrosine. This can be explained by the _____ of the genetic code.

Page 2

Question 6 6. Which process is used to produce tRNAs?

Question 7 7.

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

I. Single-stranded

II. Ribose

III. Uracil

Question 8 8. Which of these statements isn't true?

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

Question 10 10. Which part of the lac operon codes for the lactose digesting enzymes?

Page 3

Question 11 11. What makes the lac repressor fall off the lac operator?

Question 12 12. Which of the following is NOT a segment of DNA?

Question 13 13. The leading strand in the replication fork is opened in the _____ direction.

Question 14 14. DNA is added in the _____ direction on the lagging strand.

Question 15 15. Regarding DNA replication, which strand ends up with a continuous complementary strand of DNA?

Page 4

Question 16 16. 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 17 17. The lac operon codes for the enzyme that help digest the sugar _____.

Question 18 18. Which of the following describes a group of related genes in a prokaryote's DNA?

Question 19 19. Transcription factors that are repressors do what?

Question 20 20. What does a transcription factor do?

Page 5

Question 21 21. What is the name of the DNA sequence to which transcription factors bind?

Question 22 22. Do all cells replicate at the same rate?

Question 23 23. How does the structure of DNA make replication easy?

Question 24 24. Why is DNA replication necessary?

Question 25 25. Which of the following are characteristics of DNA?

Page 6

Question 26 26. DNA stands for which of the following?

Question 27 27. Which of the following are the complimentary base pairs in DNA?

Question 28 28. Which of the following responses most accurately describes a hydrogen bond?

Question 29 29. Translation is described as _____.

Question 30 30.

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 of RNA

DNA, RNA & Gene Expression 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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