Basics of DNA & RNA 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. Which of the following is tRNA's job?

Question 2 2. The codons UAU and UAC both code for the amino acid Tyrosine. This can be explained by the _____ of the genetic code.

Question 3 3. Translation is described as _____.

Question 4 4. Which process is used to produce tRNAs?

Question 5 5. Which of the following statements about tRNA and mRNA is correct?

Page 2

Question 6 6. Which of the following is NOT one of the nitrogenous bases found in DNA?

Question 7 7. Which of the following statements is true?

Question 8 8. The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.

Question 9 9. Why do DNA strands need to be antiparallel?

Question 10 10. Which of the following bases are categorized as purines?

Page 3

Question 11 11.

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

Question 12 12. Which of the following statements is true?

Question 13 13. Which of the following nitrogenous bases is NOT found in RNA?

Question 14 14. Which of these statements isn't true?

Question 15 15.

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

I. Single-stranded

II. Ribose

III. Number of nitrogenous bases

Page 4

Question 16 16. A phosphodiester bond links:

Question 17 17. How many basic types of nucleic acids exist?

Question 18 18. Which of the following forms the backbone of a DNA molecule?

Question 19 19. A nucleic acid monomer is called:

Question 20 20.

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

I. Structural support

II. Storage of information

III. Energy storage

Page 5

Question 21 21. DNA consists of four different nitrogenous bases, which are:

Question 22 22.

The following concepts led to the hypothesis that DNA has a double helix structure:

I. The ratio of A:T is 1:1.

II. Deoxyribose is the sugar in DNA.

III. DNA strands are antiparallel

Question 23 23. Which of the following scientists are credited with discovering the structure of DNA?

Question 24 24. What does DNA stand for?

Question 25 25. Which of the following statements is true?

Basics of DNA & RNA 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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