Science, Tech, Math › Science DNA Biochemistry Quiz See How Much You Know About DNA Chemistry Take this quiz to see how much you know about DNA biochemistry. Ian Cuming / Getty Images Science Chemistry Biochemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Learn about our Editorial Process Updated on July 03, 2019 1. The DNA molecule most commonly takes the form of a: linear molecule single helix A-form double helix B-form double helix 2. The four bases used in DNA are: adenine, uracil, guanine, cytosine adenine, thymine, guanine, cytosine adenine, thymine, uracil, cytosine thymine, uracil, cytosine, guanine 3. DNA is self-replicating. true false 4. All of the following are key components of the DNA molecule except: disulfide bridges deoxyribose sugar phosphate backbone purine and pyrimidine bases 5. The bases in the DNA helix are bound to each other via: hydrogen bonds covalent bonds ionic bonds metallic bonds 6. DNA is found: outside the cellular membrane only in the cytoplasm of cells only in the nucleus of cells in both the nucleus and cytoplasm of cells 7. DNA is packaged into structures called chromosomes. How many chromosomes do humans have? 23 46 52 64 8. About how long would the DNA of a single human non-sex chromosome be if it was stretched out? 17 mm 17 cm 1.7 m 17 meters 9. Which of the following statements is true? The amount of adenine equals the amount of uracil or A = U. The amount of cytosine equals the amount of thymine or C = T. The amount of adenine equals the amount of thymine or A = T. The amounts of bases do not necessarily correspond to each other. 10. All human beings share about how much of their DNA? 99% 95% 75% 50% DNA Biochemistry Quiz You got: % Correct. Questionable DNA Quiz Knowledge Learn more about DNA to master biochemistry and understand genetics.. Ian Cuming / Getty Images Nice try! You didn't get many of the answers right, but you know more than you did before. You might want to review 10 DNA facts to master the essentials. Are you ready for another quiz? See if you understand the basics about how atoms work. Share Your Results DNA Biochemistry Quiz You got: % Correct. Doing Well Understanding DNA Understanding the biochemistry of DNA is essential for chemistry and genetics classes.. Mina De La O / Getty Images Good job! You knew some of the DNA facts, plus you learned a few more just taking the quiz. From here, you could reinforce your understanding by building a DNA model. Are you ready for another quiz? See how much chemistry trivia you know. Share Your Results DNA Biochemistry Quiz You got: % Correct. DNA Quiz Dynamite DNA codes for genes that are essentially the blueprint of an organism.. KTSDESIGN/SCIENCE PHOTO LIBRARY / Getty Images Awesome! You know a lot about DNA and its chemistry. Where can you go next? You can brush up on the differences between DNA and RNA or learn how to extract DNA from living organisms. If you're ready for another quiz, see if you know whether common household chemicals are acids or bases. Share Your Results