GRE Biology: Genetic Mutations 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. The formation of cancer due to certain types of viruses is known as:

Question 2 2. Which type of mutation does NOT change the overall function of the protein?

Question 3 3. A type of point mutation that alters the length of the DNA strand is _____.

Question 4 4. Tay-Sachs disease results from a buildup of harmful chemicals in the

Question 5 5. A proto-oncogene may become an oncogene due to all of the following EXCEPT _____.

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Question 6 6. Which enzyme checks DNA for errors?

Question 7 7. Based on the original sequence, ACTTGAC, which of the following answer choices includes a transition mutation?

Question 8 8. A shift in the reading frame is usually caused by an insertion or a

Question 9 9. An example of a transversion mutation is _____.

Question 10 10. Mutagens are typically found _____.

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Question 11 11. Why do people try to protect their skin from ultraviolet radiation?

Question 12 12. Which of the following statements describe oncogenes?

Question 13 13. p53 may be responsible for:

Question 14 14. How do mutagens cause mutations?

Question 15 15. The eleventh amino acid of protein X should be serine, however due to a mutation it now has the amino acid alanine in that position. Which type of mutation could have caused this change?

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Question 16 16. _____ mutations result in a longer DNA strand.

Question 17 17. Proto-oncogenes are:

Question 18 18. What kind of mutation causes sickle-cell anemia?

Question 19 19. Which type of mutation results in an incomplete polypeptide because of an early stop signal?

Question 20 20. A mutation in DNA can affect the amino acid sequence because it affects the code found in _____.

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Question 21 21. When can a genetic mutation get passed down through successive generations?

Question 22 22. How would a shift in the reading frame likely alter the resulting protein?

Question 23 23. The best term to describe the incorporation of a random mistake into the DNA sequence at a specific point is _____.

Question 24 24. How does a frameshift mutation in the gene coding for the enzyme, hexosaminidase A, result in Tay-Sachs disease?

Question 25 25. Which type of mutations can result in a frameshift?

GRE Biology: Genetic Mutations 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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