This quiz works best with JavaScript enabled. Home > Biology > Molecular Biology – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 15 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The scientist(s) responsible for the the discovery of bacterial transformation involving bacteria-causing pneumonia in mice is (are) A) Watson and Crick. B) Avery. C) Griffith. D) Franklin. Show Answer Correct Answer: C) Griffith. 2. What is the shape of a glucose molecule? A) Straight chain. B) Pentagon. C) Hexagon. D) Octagon. Show Answer Correct Answer: C) Hexagon. 3. How can sticky ends be used? A) To join pieces of DNA from different sources. B) To destroy DNA. C) To cut the DNA using restriction enzymes. D) None of above. Show Answer Correct Answer: A) To join pieces of DNA from different sources. 4. Lipids that are healthier for your body are ..... A) Transfat. B) Saturated fat. C) Unsaturated fat. D) Available at mcdonalds. Show Answer Correct Answer: C) Unsaturated fat. 5. Cellulose is an important component of a plant's cell wall and is made up of repeating units of carbon, hydrogen, and oxygen. What type of organic molecule is cellulose? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: A) Carbohydrate. 6. Building a healthy plate can help you avoid: A) Obesity. B) Diabetes. C) Reduce risk of Heart disease. D) All. Show Answer Correct Answer: D) All. 7. Which of the following are not the components of RNA? A) Thymine. B) Adenine. C) Guanine. D) Cytosine. Show Answer Correct Answer: A) Thymine. 8. TRANSLATION:Translation occurs in the: A) Office. B) Cytoplasm. C) Nucleus. D) Cell membrane. Show Answer Correct Answer: B) Cytoplasm. 9. Which nucleic acids are directly involved in transcription? A) MRNA and one DNA strand. B) MRNA and both DNA strands. C) TRNA and both DNA strands. D) TRNA and one DNA strand. Show Answer Correct Answer: A) MRNA and one DNA strand. 10. The defining property of transposable elements is A) Replicative. B) Non - replicative. C) Motility. D) Non - motility. Show Answer Correct Answer: C) Motility. 11. What is the template for mRNA? A) DNA. B) TRNA. C) RRNA. D) Proteins. Show Answer Correct Answer: A) DNA. 12. What happens in Translocation? A) They all live normaly. B) They all repeat each other. C) Different chromosomes cross-over with each other. D) Something happens. Show Answer Correct Answer: C) Different chromosomes cross-over with each other. 13. Which was most likely the earliest way biotechnology was used by humans? A) Finding evidence for crimes. B) Making medicines to cure sickness. C) Discovering the cause of hereditary diseases. D) Breeding better varieties of crops and livestock. Show Answer Correct Answer: D) Breeding better varieties of crops and livestock. 14. RNA primase is used show where DNA polymerase III is to attach to add nucleotides on the exposed lagging strand. What is the name of the promoter strand on the DNA lagging strand called? A) Telomere. B) TATA box. C) Primer. D) Topoisomerase. Show Answer Correct Answer: B) TATA box. 15. Which is NOT part of cellular respiration? A) Energy release. B) Production of ATP. C) Catabolism of organic compounds. D) Production of oxygen. Show Answer Correct Answer: D) Production of oxygen. 16. Which best describes the technique of genetic engineering? A) Manufacturing synthetic DNA in the lab from chemicals. B) Cutting out segments of DNA under a microscope. C) Exposing the DNA of an organism to radiation to produce mutations. D) Introducing foreign DNA into an organism in order to modify the organism's DNA. Show Answer Correct Answer: D) Introducing foreign DNA into an organism in order to modify the organism's DNA. 17. Which is LEAST likely to limit the rate of photosynthesis in a plant? A) Temperature. B) Light intensity. C) Carbon dioxide concentration. D) PH. Show Answer Correct Answer: D) PH. 18. Which can be explained by the solvent properties of water? A) Sodium chloride is transported as Na+ and Cl- in blood. B) Movement of water occurs under tension in the xylem. C) Water is the coolant in sweat. D) Ice floats on liquid water. Show Answer Correct Answer: A) Sodium chloride is transported as Na+ and Cl- in blood. 19. The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon. This results in A) A polypeptide missing an amino acid. B) A base-pair substitution. C) A frameshift mutation. D) A nucleotide mismatch. Show Answer Correct Answer: A) A polypeptide missing an amino acid. 20. According to Chargaff's rule, what percentage of cytosine would be found in the DNA of a bacterium if it has 13% adenine? A) 26%. B) 74%. C) 37%. D) 30%. Show Answer Correct Answer: C) 37%. ← PreviousNext →Related QuizzesMolecular Biology Quiz 1Molecular Biology Quiz 2Molecular Biology Quiz 3Molecular Biology Quiz 4Molecular Biology Quiz 5Molecular Biology Quiz 6Molecular Biology Quiz 7Molecular Biology Quiz 8Molecular Biology Quiz 9Molecular Biology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books