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 forms the backbone of a DNA molecule?

Question 2 2. A phosphodiester bond links:

Question 3 3. How many basic types of nucleic acids exist?

Question 4 4. A nucleic acid monomer is called:

Question 5 5.

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

I. Structural support

II. Storage of information

III. Energy storage

Page 2

Question 6 6. Why do DNA strands need to be antiparallel?

Question 7 7. Which of the following bases are categorized as purines?

Question 8 8. Which of the following is NOT one of the nitrogenous bases found in DNA?

Question 9 9. Which of the following statements is true?

Question 10 10. The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.

Page 3

Question 11 11.

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

I. Single-stranded

II. Ribose

III. Number of nitrogenous bases

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 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

Page 4

Question 16 16. The codons UAU and UAC both code for the amino acid Tyrosine. This can be explained by the _____ of the genetic code.

Question 17 17. Translation is described as _____.

Question 18 18. Which of the following statements about tRNA and mRNA is correct?

Question 19 19. Which process is used to produce tRNAs?

Question 20 20. Which of the following is tRNA's job?

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Question 21 21.

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

Question 23 23. What does DNA stand for?

Question 24 24. Which of the following statements is true?

Question 25 25. Which of the following scientists are credited with discovering the structure of DNA?

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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