This quiz works best with JavaScript enabled. Home > Biology > Molecular > Molecular Biology – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 14 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The enzyme that unzips DNA during transcription A) DNA polymeras. B) RNA polymerase. C) RNA primase. D) Ligase. Show Answer Correct Answer: B) RNA polymerase. 2. If one strand of DNA is TTGCA, what is the sequence of the other complementary DNA strand? A) TTGCA. B) UUCGT. C) AACGU. D) AACGT. Show Answer Correct Answer: D) AACGT. 3. Which characteristic do all single-celled and multicellular organisms have in common? A) They release carbon dioxide as a waste product. B) They require oxygen for the production of glucose and water. C) They take in nutrients and break down the nutrients to release energy. D) They consume other organisms to obtain energy from food. Show Answer Correct Answer: C) They take in nutrients and break down the nutrients to release energy. 4. Which macromolecule causes newly formed cells to specialize? A) Lipids. B) Steroids. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: C) Nucleic acids. 5. The greatest amount of ATP is produced during A) Fermentation. B) Anaerobic respiration. C) Glycolysis. D) Aerobic respiration. Show Answer Correct Answer: D) Aerobic respiration. 6. If carbon dioxide is completely removed from a plant's environment, what would you expect to happen to the plant's production of glucose (rate of photosynthesis)? A) Sugar production will likely increase. B) Sugars will not be produced. C) The rate of sugar production will decrease . D) Fewer sugars will be produced at first, but then the plant will recover. Show Answer Correct Answer: B) Sugars will not be produced. 7. In RNA, the nitrogen base..... replaces ..... that was present in DNA. A) A, U (adenine, uracil). B) C, G (cytosine, guanine). C) U, T (uracil, thymine). D) U, A (uracil, adenine). Show Answer Correct Answer: C) U, T (uracil, thymine). 8. Pick the type of food that would be a good choice for a healthy snack? A) Potato chips. B) Candy bar. C) Nuts. D) Soda. Show Answer Correct Answer: C) Nuts. 9. PH less than 7. A) Acids. B) Bases. C) All. D) None of above. Show Answer Correct Answer: A) Acids. 10. Where does photosynthesis take place in the plant cell? A) Nucleus. B) Cytoplasm. C) Chloroplast. D) Mitochondria. Show Answer Correct Answer: C) Chloroplast. 11. CH3 is a ..... group A) Carboxyl. B) Methyl. C) Amine. D) Hydroxyl. Show Answer Correct Answer: B) Methyl. 12. Where does transcription occur in eukaryotic cells? A) Nucleus. B) Ribosome. C) Cytoplasm. D) Rough E.R. Show Answer Correct Answer: A) Nucleus. 13. 00512 mL is equivalent to ..... $\mu$L. A) $0.0512 \times 10^3$. B) $0.00512 \times 10^6 $. C) 5.12. D) 51.2. Show Answer Correct Answer: C) 5.12. 14. The second step of protein synthesis is best summarized by which of the following? A) MRNA to DNA. B) DNA to protein. C) MRNA to protein. D) Nucleus to ribosome. Show Answer Correct Answer: C) MRNA to protein. 15. Personal medical records become more available and more detailed because of biotechnological research. Based on this information, which is a major concern to the public? A) Transmission of more diseases. B) An increase in under qualified doctors. C) Inappropriate use of medical information. D) Overdiagnosis of certain medical conditions. Show Answer Correct Answer: C) Inappropriate use of medical information. 16. The individuality of an organism is determined by the A) Sequence of nitrogenous bases in deoxyribonucleic acid. B) Number of amino acids in a cell. C) Position of the ribosomes on the endoplasmic resticulum. D) Number of nitrogenous bases in a codon. Show Answer Correct Answer: A) Sequence of nitrogenous bases in deoxyribonucleic acid. 17. When an organism oxidizes food, some of the energy is lost. Which explains this loss of energy? A) Energy is lost or released as heat. B) Energy is converted to waste. C) Energy is stored for later use. D) Energy is converted to chemical compounds. Show Answer Correct Answer: A) Energy is lost or released as heat. 18. What is a codon? A) A sequence of nucleotides on rRNA that corresponds to an amino acid. B) A sequence of nucleotides on mRNA that corresponds to an amino acid. C) A sequence of nucleotides on tRNA that corresponds to an amino acid. D) A sequence of nucleotides on DNA that corresponds to an amino acid. Show Answer Correct Answer: B) A sequence of nucleotides on mRNA that corresponds to an amino acid. 19. When an electrical current is used to separate a mixture of DNA..... A) Electricity. B) Restriction maps. C) Gel electrophoresis. D) Electron map. Show Answer Correct Answer: C) Gel electrophoresis. 20. How would the DNA sequence GCTATA be transcribed to mRNA? A) GCUAUA. B) CGATAT. C) CGAUAU. D) GCUTUT. Show Answer Correct Answer: C) CGAUAU. ← PreviousNext →Related QuizzesBiology 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books