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Chemical Nature of the Gene 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. The basic building block of a protein is:

Question 2 2. Chemical or physical agents that cause mutations are called:

Question 3 3. What type of molecule is released during the formation of a peptide bond?

Question 4 4. The name of the molecule that matches an amino acid to a RNA codon is:

Question 5 5. Which of the following is the process of transferring genetic information from DNA to RNA?

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Question 6 6. Which letters represent the 4 nucleotide bases in mRNA?

Question 7 7.

Use the chart to decode this strand of mRNA:

AUGUCAGAUUGA

Question 8 8. Because the same codons specify the same amino acids in nearly all organisms, we say that the genetic code is _____.

Question 9 9. The 'start' mRNA codon is:

Question 10 10. The letters used in the codon chart are reflections of which type of code?

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Question 11 11. Frameshift mutations are caused by:

Question 12 12. A nonsense mutation:

Question 13 13. Which single nucleotide makes up the 5' cap?

Question 14 14. Which of the following are the three stop codons for mRNA translation?

Question 15 15. What kind of mutation causes sickle-cell anemia?

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Question 16 16. When a purine is replaced by a pyrimidine, or vice-versa, we specifically call it a:

Question 17 17. 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?

Question 18 18. The best term to describe the incorporation of a random mistake into the DNA sequence at a specific point is _____.

Question 19 19. RNA translation takes place in which organelle?

Question 20 20. How many subunits make up the ribosome complex?

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Question 21 21. How many amino acids are specified by each different codon?

Question 22 22. Which of the following terms encompasses all the cellular activities involved in building protein molecules?

Question 23 23. How do mutagens cause mutations?

Question 24 24. Mutagens are typically found _____.

Question 25 25. RNA splicing is:

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Question 26 26. Which enzyme checks DNA for errors?

Question 27 27. Which type of mutations can result in a frameshift?

Question 28 28. What are the functions of spliceosomes in RNA splicing?

Question 29 29. Before an mRNA molecule is finished with RNA processing, what is it called?

Question 30 30. In which step does the polypeptide continue to grow as amino acids are added to the chain?

Chemical Nature of the Gene 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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