This quiz works best with JavaScript enabled. Home > Biotechnology > Genetic Engineering – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Genetic Engineering Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why does DNA replicate? A) To create another copy for the new cell. B) To create a duplicate copy in case the original gets damaged. C) To create a new copy to replace the damaged original. D) None of above. Show Answer Correct Answer: A) To create another copy for the new cell. 2. What is a benefit of stem cells? A) They can only replace damaged lung cells. B) They can replace tissue that is deficient due to disease or damage. C) They increase the risk of diseases. D) They are abundant in all adult tissues. Show Answer Correct Answer: B) They can replace tissue that is deficient due to disease or damage. 3. What is so special about BT corn? A) When caterpillars eat it, they get healthy and grow. B) When caterpillars eat it, they get sick and die. C) When humans eat it, they get sick and die. D) When birds eat it, they get sick and die. Show Answer Correct Answer: B) When caterpillars eat it, they get sick and die. 4. What makes changes in the DNA code of a living organism? A) Genetic engineering. B) Selective breeding. C) Inbreeding. D) Hybridization. Show Answer Correct Answer: A) Genetic engineering. 5. The variety or differences we see among species it Is caused by A) Mutations. B) Polyploidy. Show Answer Correct Answer: A) Mutations. 6. In gel electrophoresis, DNA moves ..... A) Toward the positive electrode. B) Toward the negative electrode. C) According to its varied charge. D) From lane to lane depending on size. Show Answer Correct Answer: A) Toward the positive electrode. 7. What shape are plasmids? A) Linear. B) Circular. C) Double helix. D) Square. Show Answer Correct Answer: B) Circular. 8. What is the purpose of the Luria broth (LB) when performing genetic transformation? A) Provides resistance to antibiotics. B) Provides nutrients needed for bacteria growth. C) Stabilizes the plasmid being given to the host organism. D) Sterilizes the instruments. Show Answer Correct Answer: B) Provides nutrients needed for bacteria growth. 9. It is double stranded, self-replicating, circular DNA molecule present in bacteria which is widely used as a gene cloning vector. A) Cosmid. B) Bacterial Genome. C) Phagemid. D) Plasmid. Show Answer Correct Answer: D) Plasmid. 10. An IT specialist violates the privacy of a fellow employee by viewing her confidential personnel files. This is ..... A) Ethical Behavior. B) Unethical Behavior. Show Answer Correct Answer: B) Unethical Behavior. 11. Which of the following is the correct pairing of the bases? A) Adenine and Thymine, Guanine and Cytosine. B) Adenine and Guanine, Cytosine and Thymine. C) Adenine and Cytosine, Guanine and Thymine. D) None of above. Show Answer Correct Answer: A) Adenine and Thymine, Guanine and Cytosine. 12. Proteins that cut DNA at specific bases (cuts plasmid and human gene) A) Gene therapy. B) Clone. C) Gel electrophoresis. D) Restriction enzymes. Show Answer Correct Answer: D) Restriction enzymes. 13. Define recombinant DNA technology A) A method in which same DNA from same organisms is spliced (combine) together in the laboratory. B) A method in which DNA is spliced together in the laboratory. C) A method in which different DNA from same organism is spliced (combine) together in the laboratory. D) A method in which DNA from different organisms is combined together in the laboratory. Show Answer Correct Answer: D) A method in which DNA from different organisms is combined together in the laboratory. 14. Why do farmers choose to use GM crops rather than regular crops? A) They are safer. B) They are more productive. C) They are less expensive. D) They are less controversial. Show Answer Correct Answer: B) They are more productive. 15. The growth hormone of gene from Chinook salmon is introduced to Atlantic salmon. A) Agriculture. B) Bioremediation. C) Gene Therapy. D) Genetic Testing. E) Pharmaceuticals. Show Answer Correct Answer: A) Agriculture. 16. When scientists cut DNA from one organism and paste it in another organism, what are they using to paste it? A) Restriction enzymes. B) Ligase enzymes. C) Plasmids. D) Diabetes. Show Answer Correct Answer: B) Ligase enzymes. 17. Used to deliver genes in genetic therapy A) Viruses. B) Gel electrophoresis. C) Hybridization. D) Selective breeding. Show Answer Correct Answer: A) Viruses. 18. How can organisms be genetically modified? A) By splicing genes from one organism into another. B) By using chemicals to alter their genetic composition. C) By exposing them to radiation. D) By changing their protein sequence. Show Answer Correct Answer: A) By splicing genes from one organism into another. 19. What is a key difference between artificial selection and natural selection? A) Artificial selection involves the same genes as the organism from which it was produced. B) Natural selection involves human influence. C) Artificial selection involves human influence. D) Natural selection is the process of transferring a gene from the DNA of one organism into another. Show Answer Correct Answer: C) Artificial selection involves human influence. 20. Fill in the blank. " ..... "is the uptake of DNA into a cell. A) Transformation. B) Isolation. C) Cutting. D) Expression. Show Answer Correct Answer: A) Transformation. ← PreviousNext →Related QuizzesGenetic Engineering Quiz 1Genetic Engineering Quiz 2Genetic Engineering Quiz 3Genetic Engineering Quiz 4Genetic Engineering Quiz 5Genetic Engineering Quiz 6Genetic Engineering Quiz 7Genetic Engineering Quiz 8Genetic Engineering Quiz 9Genetic Engineering Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books