This quiz works best with JavaScript enabled. Home > Biology > Molecular > Molecular Biology – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Molecular Biology Quiz 10 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which DNA has identical base pair sequences? A) DNA that segregates during mitosis. B) DNA that segregates during mitosis 2. C) DNA that segregates either in mitosis or meiosis 1. D) DNA that segregates during meiosis 2. Show Answer Correct Answer: A) DNA that segregates during mitosis. 2. The directions found in a strand of DNA are copied onto mRNA during which process? A) Replication. B) Synthesis. C) Transcription. D) Translation. Show Answer Correct Answer: C) Transcription. 3. Controls what goes in and out of the cell A) Cell membrane. B) Nucleus. C) Endoplasmic reticulum. D) None of above. Show Answer Correct Answer: A) Cell membrane. 4. Thymine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be cytosine? A) 42%. B) 31%. C) 16%. D) 8%. Show Answer Correct Answer: D) 8%. 5. In which of the following would there NOT be a change in the amino acid sequence of the peptide coded for by this DNA? A) Changing AAA to AAG. B) Changing TTC to ATC. C) Changing CCG to GCG. D) Deleting the first A from AAA. Show Answer Correct Answer: A) Changing AAA to AAG. 6. Where are amino acids joined together to make polypeptides? A) Nucleus. B) Nucleolus. C) Golgi apparatus. D) Ribosomes. Show Answer Correct Answer: D) Ribosomes. 7. If the mRNA strand is AUG CCC GGG what would the complementary tRNA strand look like? A) AUG CCC GGG. B) GGG CCC AUG. C) UAC GGG CCC. D) TAC GGG CCC. Show Answer Correct Answer: C) UAC GGG CCC. 8. DNA Probe A) The other side of a code for gene. B) An electric measuring tool. C) A short sequence of radioactive nucleotides. D) None of above. Show Answer Correct Answer: C) A short sequence of radioactive nucleotides. 9. A DNA molecule produced by combining DNA from different sources is called? A) Mutant DNA. B) Polyploid DNA. C) Diploid DNA. D) Recombinant DNA. Show Answer Correct Answer: D) Recombinant DNA. 10. Avery and his coworkers showed the "transforming principle" as A) Protein. B) Polysaccharide. C) DNA. D) Lipid. Show Answer Correct Answer: C) DNA. 11. What does Lamarck's Theory state? A) Evolution occurred by the inheritance of acquired characteristics. B) Environment pressure causes body changes. C) All species of life have evolved over time from common ancestors through the process called natural selection. D) Organisms are arranged from simple to complex. Show Answer Correct Answer: B) Environment pressure causes body changes. 12. The codon is located on the A) DNA. B) MRNA. C) TRNA. D) RRNA. Show Answer Correct Answer: B) MRNA. 13. What is the enzyme responsible for DNA replication? A) DNA polymerase. B) RNA polymerase. C) Ribosome. D) Nucleolus. Show Answer Correct Answer: A) DNA polymerase. 14. PROCESSES: RNA making a protein is called: A) Transmutation. B) Transferrance. C) Transcription. D) Translation. Show Answer Correct Answer: D) Translation. 15. Genes may exist in several alternate forms called A) Alleles. B) Clones. C) Purines. D) Pyrimidines. Show Answer Correct Answer: A) Alleles. 16. What are Watson and Crick famous for? A) Confirming results that DNA was the genetic material in cells. B) Inferring that genetic information can be transferred. C) Making a 3D model of the double helix structure of DNA. D) Taking x-ray images of DNA's structure. Show Answer Correct Answer: C) Making a 3D model of the double helix structure of DNA. 17. Which best describes the hierarchy of cell organization? A) Organ systems, cells, organs, tissues. B) Tissues, organ systems, cells, organs. C) Organs, cells, organs systems, tissues. D) Cells, tissues, organs, organ systems. Show Answer Correct Answer: D) Cells, tissues, organs, organ systems. 18. Which statement about cells and sugar is true? A) Both animal cells and plant cells use sugar. B) Animal cells use sugar, but plant cells do not. C) Animal cells do not use sugar, but plant cells do. D) Neither animal cells nor plant cells use sugar. Show Answer Correct Answer: A) Both animal cells and plant cells use sugar. 19. The anticodon is located on A) DNA. B) MRNA. C) TRNA. D) RRNA. Show Answer Correct Answer: C) TRNA. 20. The chain of amino acids that are translated using a codon chart creates: A) Phosphate. B) Protein. C) Sugar. D) Base. Show Answer Correct Answer: B) Protein. ← 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