This quiz works best with JavaScript enabled. Home > Biology > Molecular > Molecular Biology – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 37 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The process to go from mRNA to a protein is called ..... A) Transcription. B) RRNA. C) Replication. D) Translation. Show Answer Correct Answer: D) Translation. 2. Which of the following would result in a frameshift mutation? A) Insertions only. B) Substitution only. C) Deletion only. D) Insertions and Deletions. Show Answer Correct Answer: D) Insertions and Deletions. 3. Which best describes the process of photosynthesis? USE YOUR NOTES! A) Carbon dioxide and oxygen are converted into glucose and water. B) Carbon dioxide and water are converted into glucose and oxygen. C) Oxygen and glucose are converted into carbon dioxide and water. D) Oxygen and water are converted into carbon dioxide and glucose. Show Answer Correct Answer: B) Carbon dioxide and water are converted into glucose and oxygen. 4. According to Chargaff's rule of base pairing, which of the following is true about DNA? A) A=T and C=G. B) A=C and T=G. C) A=G and T=C. D) A=T=C=G. Show Answer Correct Answer: A) A=T and C=G. 5. If a portion of DNA strand reads:3' A A A T T T C 5'The matching strand would read..... A) 5' T T T A A A G 3'. B) 3' T T T A A A G 5'. C) 5' A A A T T T C 3'. D) 3' U U U A A A G 5'. Show Answer Correct Answer: A) 5' T T T A A A G 3'. 6. This cannot leave the nucleus A) DNA. B) RNA. C) Both. D) None of above. Show Answer Correct Answer: A) DNA. 7. What is a Plasmid DNA? A) An extra-chromosomal double stranded circular DNA molecule. B) An extra-chromosomal double stranded linear DNA molecule. C) An extra-chromosomal single stranded DNA molecule. D) An extra-chromosomal triple stranded DNA molecule. Show Answer Correct Answer: A) An extra-chromosomal double stranded circular DNA molecule. 8. A 2021bp plasmid is cut at the 5th base, the 1000th base, and the 1540th base. How many pieces are there and what's the longest piece? A) 3, 995bp. B) 4, 540bp. C) 3, 486bp. D) None of these. Show Answer Correct Answer: A) 3, 995bp. 9. The relaxation of base pairing rules for the third nucleotide. Ex; UCU, UCC, UCA, and UCG. All code for the same amino acid, serine. A) Mutation. B) Codons. C) Wobble. D) RNA. Show Answer Correct Answer: C) Wobble. 10. In the process of DNA replication, nucleotides are added as DNA is synthesized. Which best describes how it is determined what nucleotides are added? A) The nucleotides are added to exactly match the sequence on the original strand. B) The nucleotides that are in the greatest supply in the cell are added first. C) The nucleotides are added based in the complementary base pairing rules. D) The nucleotides are added randomly. Show Answer Correct Answer: C) The nucleotides are added based in the complementary base pairing rules. 11. What is the role of protein kinase in a signal transduction pathway? A) Activates a molecule by adding a phosphate to the target molecule. B) Activates a molecule by removing a phosphate from the target molecule. C) Deactivate a molecule by removing a phosphate from the target molecule. D) Deactivate a molecule by adding a phosphate to the target molecule. Show Answer Correct Answer: A) Activates a molecule by adding a phosphate to the target molecule. 12. In RNA, uracil takes the place of the DNA nitrogen base called A) Guanine. B) Cytosine. C) Thymine. D) Adenine. Show Answer Correct Answer: C) Thymine. 13. Transcription is the process where A) DNA is replicated. B) DNA is copied into mRNA. C) DNA is copied in tRNA. D) DNA is copied. Show Answer Correct Answer: B) DNA is copied into mRNA. 14. What is amplified using the polymerase chain reaction (PCR)? A) Large amounts of RNA. B) Small amounts of DNA. C) Small amounts of protein. D) Large amounts of polymers. Show Answer Correct Answer: B) Small amounts of DNA. 15. Molecules of DNA are composed of long chains of: A) Nucleotides. B) Amino acids. C) Monosaccharides. D) Fatty acids. Show Answer Correct Answer: A) Nucleotides. 16. What are the 2 functions of DNA polymerase? A) Makes DNA and RNA. B) Makes DNA and protein. C) Makes DNA and fixes its mistakes. D) Makes RNA and protein. Show Answer Correct Answer: C) Makes DNA and fixes its mistakes. 17. What role does transfer RNA have in translation? A) It repairs damaged DNA. B) It binds with an unzipped strand of DNA to copy DNA nucleotide sequences. C) It transports energy from the mitochondrion to the ribosome so that translation can take place. D) It carries amino acids to the ribosome. Show Answer Correct Answer: D) It carries amino acids to the ribosome. 18. Klenow fragment is derived from A) DNA polymerase I. B) RNA polymerase II. C) Reverse transcriptase. D) DNA ligase. Show Answer Correct Answer: A) DNA polymerase I. 19. The enzyme that catalyzes the synthesis of new DNA molecules is called A) DNA ligase. B) DNA polymerase. C) DNA gyrase. D) DNA helicase. Show Answer Correct Answer: B) DNA polymerase. 20. Who was credited with the discovery of the structure of DNA and was awarded a Nobel Prize? A) Rosalind Franklin. B) Erwin Chargaff, Watson, and Crick. C) Watson and Crick. D) Rosalind Franklin, Erwin Chargaff, Watson, and Crick. Show Answer Correct Answer: C) Watson and Crick. ← 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