Campbell Biology Chapter 18: Regulation of 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!

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Question 1 1. Christina was informed by her oncologist that her cancer had originated in her right breast but has now, unfortunately, spread to her lungs and chest cavity. The step in the formation of cancer that Christina currently finds herself in is known as _____.

Question 2 2. Substances that exist in the world which cause cancer are known as _____.

Question 3 3. A carcinogen is:

Question 4 4. Which of the following is NOT a carcinogen?

Question 5 5. Li-Fraumeni syndrome arises from a mutation in _____.

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Question 6 6. All of the following statements are true, EXCEPT:

Question 7 7. Operons are only found in what kind of cell?

Question 8 8. Which of the following encode proteins that directly influence the expression of segmentation genes?

Question 9 9. Which of the following best describes initiation?

Question 10 10. At what stage do maternal-effect gene products first appear in fruit fly development?

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Question 11 11. 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 12 12. Hereditary Breast and Ovarian Cancer Syndrome (HBOC) _____.

Question 13 13. The repressor blocks RNA polymerase from binding to the promoter, making _____ impossible.

Question 14 14. Why is promotion reversible if it is stopped early enough in the process?

Question 15 15. p53 may be responsible for:

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Question 16 16. Which group of genes controls the development of segments into appendages?

Question 17 17. The formation of cancer due to certain types of viruses is known as:

Question 18 18. Which part of the lac operon codes for the lactose digesting enzymes?

Question 19 19. How are segmentation genes and homeotic genes related?

Question 20 20. A proto-oncogene may become an oncogene due to all of the following EXCEPT _____.

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Question 21 21. Proto-oncogenes are:

Question 22 22. Which of these is NOT a clue for a family cancer syndrome?

Question 23 23. What makes the lac repressor fall off the lac operator?

Question 24 24. Which of the following statements describe oncogenes?

Question 25 25. The lac operon codes for the enzyme that help digest the sugar _____.

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Question 26 26. Which of the following describes an increase in gene expression?

Question 27 27. Which of the following describes a group of related genes in a prokaryote's DNA?

Question 28 28. Which of the following does NOT control the development of the anterior-posterior axis in fruit flies?

Question 29 29. A disorder characterized by the inheritance of genetic mutations that increase the risk for development, especially early development, of a cancer is called:

Question 30 30. Which of the following is NOT a segment of DNA?

Campbell Biology Chapter 18: Regulation of 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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