This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In cDNA synthesis, the eukaryotic ..... is used as a template to generate DNA A) MRNA. B) TRNA. C) RRNA. D) None of the above. Show Answer Correct Answer: A) MRNA. 2. Foods that have been genetically modified through biotechnology ..... genes have been manipulated A) Cloned foods. B) Processed foods. C) Organic foods. D) Genetically modified foods. Show Answer Correct Answer: D) Genetically modified foods. 3. Who reports that an adverse event occurred during a clinical trial? A) Clinical trial coordinator. B) Product safety scientist. C) Product safety associate. D) Clinical trial monitor. Show Answer Correct Answer: C) Product safety associate. 4. Which of the following is the result of cloning? A) A genetically different individual. B) Two similar offspring. C) A genetically identical offspring. D) Genetically indifferent offspring. Show Answer Correct Answer: C) A genetically identical offspring. 5. Which of the following is the correct order of processing of PCR? A) Annealing, denaturation, extension. B) Extension, annealing, denaturation. C) Denaturation, extension, annealing. D) Denaturation, annealing, extension. Show Answer Correct Answer: A) Annealing, denaturation, extension. 6. Multiple Choice Questions (1-25)-A cloning vector must have: A) Origin of replication. B) Selectable marker. C) Restriction site. D) All of the above. Show Answer Correct Answer: D) All of the above. 7. In "QB Bacteriophase" genetic material is: A) DNA. B) RNA. C) Protein. D) None. Show Answer Correct Answer: B) RNA. 8. In what way is biotechnology useful to law enforcement agencies such as the police or FBI? A) It might help determine who might be the victime of a future crime. B) It can help identify who was present at the scene of a crime. C) It can help determine who is most likely to become a criminal in the future. D) It can help undercover officers disguise themselves. Show Answer Correct Answer: B) It can help identify who was present at the scene of a crime. 9. The trigger for the activation of the toxin of Bacillus thuringiensis A) High temperature. B) Alkaline pH of gut. C) Acidic pH of stomach. D) Mechanical action in the insect gut. Show Answer Correct Answer: B) Alkaline pH of gut. 10. True or False:Comparing Embryonic and Adult Stem Cells, Adult Stem Cells are the more versatile type of stem cell. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. A scientist wants to combine a bacterial plasmid with a human insulin gene. A) She should use the same restriction enzyme to cut them to make blunt ends. B) She should use different restriction enzyme to cut them to make sticky ends. C) She should use different restriction enzyme to cut them to make blunt ends. D) She should use the same restriction enzyme to cut them to make sticky ends. Show Answer Correct Answer: D) She should use the same restriction enzyme to cut them to make sticky ends. 12. Where do mutations occur? A) DNA and RNA. B) DNA only. C) RNA only. D) MRNA and tRNA. Show Answer Correct Answer: B) DNA only. 13. What is the primary goal of using CRISPR technology in biotechnology? A) To produce renewable energy. B) To increase crop yield. C) To enhance food preservation. D) To edit genes for disease resistance. Show Answer Correct Answer: D) To edit genes for disease resistance. 14. Isolation of DNA from a fungal cell involves the use of enzyme A) Eco R1. B) Hind-II. C) Lysozyme. D) Chitinase. Show Answer Correct Answer: D) Chitinase. 15. What are biofuels? A) Using living organisms to remove pollution from the environment. B) Transgenic crops that contain more nutrients then they would otherwise. C) Alternative to fossil fuels like goal and petroleum. obtained from plants and algae. D) Incredible Hulk food to keep him going strong. Show Answer Correct Answer: C) Alternative to fossil fuels like goal and petroleum. obtained from plants and algae. 16. Jenis-jenis mikroorganisme sebagai berikut:1. Penicilium camemberti2. Streptococcus thermophillus3. Lactobacillus bulgaris4. Aspergillus soyaeMikroorganisme yang berperan dalam pembuatan yoghurt meliputi nomor ..... A) 2 dan 3. B) 1 dan 4. C) 1 dan 3. D) 3 dan 4. Show Answer Correct Answer: A) 2 dan 3. 17. How can we make a host competent A) By physical method. B) By chemical method. C) Both of these. D) None of these. Show Answer Correct Answer: C) Both of these. 18. Which best describes a potential economic benefit to the rural areas of North Carolina? A) Biotechnology can help farmers develop disease-resistant crops. B) Biotechnology can help make the harvesting process less efficient. C) Biotechnology can reduce the amount of time required to plant a crop in the field. D) Biotechnology can help farmers advertise and sell their produce through the Internet. Show Answer Correct Answer: A) Biotechnology can help farmers develop disease-resistant crops. 19. If a disease is a worldwide threat then it is a(n) A) Epidemic. B) Outbreak. C) Pandemic. D) Endemic. Show Answer Correct Answer: C) Pandemic. 20. Which of the following best describes the role of enzymes in biotechnology? A) Enzymes are used to create new elements in a laboratory. B) Enzymes are used to slow down the growth of bacteria in food. C) Enzymes are used to increase the temperature of chemical reactions. D) Enzymes are used to speed up chemical reactions in industrial processes. Show Answer Correct Answer: D) Enzymes are used to speed up chemical reactions in industrial processes. 21. What is the purpose of the polyethylene glycol method? A) Biodiesel production. B) Gene transfer without a vector. C) Seedless fruit production. D) Energy production from sewage. Show Answer Correct Answer: B) Gene transfer without a vector. 22. Which DNA technology would best help endangered species? A) Electrophoresis. B) Sequencing. C) Antibody production. D) Cloning. Show Answer Correct Answer: D) Cloning. 23. Multiple Choice Questions (1-25)-PCR involves: A) Denaturation, annealing, extension. B) Translation, transcription, replication. C) Annealing, hybridization, duplication. D) None of these. Show Answer Correct Answer: A) Denaturation, annealing, extension. 24. Which of the following careers is within the Biotechnology Research & Development pathway? A) Biomedical Engineer. B) Public Heath Educators. C) MRI Technologist. D) Health Information Technician. Show Answer Correct Answer: A) Biomedical Engineer. 25. Which of these processes utilizes electricity to pass through a gel that contains DNA samples to create a pattern unique to each sample. A) GMO. B) DNA Fingerprint. C) DNA Extraction. D) CRISPR. Show Answer Correct Answer: B) DNA Fingerprint. 26. Two people believe they are related. Which would be the best technique to determine if they are related? A) Examining karyotypes. B) Comparing DNA. C) Testing for genetic disorders. D) Testing blood types. Show Answer Correct Answer: B) Comparing DNA. 27. These scientists conduct studies and tests to discover new products, improve existing products and solve problems in areas such as environmental protection and disease prevention. A) Data miner. B) Bioinformatics. C) Biochemist. D) Biostatistician. Show Answer Correct Answer: C) Biochemist. 28. Silencing of mRNA has been used in producing transgenic plants resistant to A) White rusts. B) Bacterial blights. C) Boll worms. D) Nematodes. Show Answer Correct Answer: D) Nematodes. 29. Which of the following is added to a fermenter to allow microorganisms to produce amino acids? A) Ammonium ions. B) Oxygen. C) Glucose. D) Carbon dioxide. Show Answer Correct Answer: A) Ammonium ions. 30. The term chimeric DNA refers to A) DNA with overhanging stretches. B) DNA with palindromic sequences. C) Molecular scissors. D) A recombinant DNA. Show Answer Correct Answer: D) A recombinant DNA. 31. Unique sequence of DNA base pairs that can be used to identify a person at the molecular level A) Recombinant DNA. B) Bioremediation. C) DNA fingerprint. D) Gene therapy. Show Answer Correct Answer: C) DNA fingerprint. 32. What is the most useful change biotechnology has made in agriculture? A) Crops need more nutrients. B) Crops resist more diseases. C) Crops need more water. D) Crops need more time to grow. Show Answer Correct Answer: B) Crops resist more diseases. 33. The first restriction endonuclease reported was A) Hind III. B) BamHI. C) Hind II. D) EcoRl. Show Answer Correct Answer: C) Hind II. 34. Which of the following is NOT true about biotechnology research and development? A) Invents or improves medical devices. B) Focuses on studying diseases. C) Creates new diseases. D) Discovers new treatments. Show Answer Correct Answer: C) Creates new diseases. 35. Which potential problem could occur from recent increases in genetically modified foods? A) Increased crop yield. B) Creation of herbicide-resistant weeds. C) Increased risk to crops from environmental stresses. D) Improved taste, texture, appearance, and nutritional qualities of food. Show Answer Correct Answer: B) Creation of herbicide-resistant weeds. 36. Which of the following is a method to enhance the stability of carotenoids in food? A) Fermentation. B) Boiling. C) Microencapsulation. D) Freezing. Show Answer Correct Answer: C) Microencapsulation. 37. Which of these areas of bioengineering are least ethically questioned? A) Creation of vaccines. B) BT corn being sold world wide. C) Lack of labeling GMO foods. D) Using transgenic pigs to harvest transplant organs. Show Answer Correct Answer: A) Creation of vaccines. 38. Beefalo is an example of what type of selective breeding? A) Cloning. B) Hybridization. C) In-breeding. D) None of the above. Show Answer Correct Answer: B) Hybridization. 39. Strawberries have been genetically modified to resist frost. How is this a benefit for growers in North Carolina? A) A pest resistant berry. B) Easier harvesting. C) A larger berry. D) A longer growing season. Show Answer Correct Answer: D) A longer growing season. 40. How do smaller molecules behave in electrophoresis? A) They dissolve. B) They move slower. C) They move faster. D) They remain stationary. Show Answer Correct Answer: C) They move faster. 41. True or False:Biotechnology has been used for thousands of years by people to produce cloned crops, cheese, bread and beer/wine. A) Only cloning plants. B) False. C) True. D) Only cheese, bread, beer/wine. Show Answer Correct Answer: C) True. 42. Which of these is not a way in which biotechnology can benefit agriculture? A) Improving farm machinery. B) Producing better-tasting food. C) Increase crop population. D) Reducing the loss of crops due to insects. Show Answer Correct Answer: A) Improving farm machinery. 43. Roderick recently earned his doctoral degree Which job is he MOST LIKELYpursuing? A) Sales representative. B) Veterinary technician. C) Technical writer. D) Research scientist. Show Answer Correct Answer: D) Research scientist. 44. Workers in the Biotechnology Research & Development pathway: A) Are responsible for cleaning and maintaining health care facilities. B) Use advancements in science and technology to improve health care. C) Record valuable health care information. D) None of the above. Show Answer Correct Answer: B) Use advancements in science and technology to improve health care. 45. Which of the following scenarios best illustrates an ethical dilemma in biotechnology? A) Creating vaccines to prevent infectious diseases. B) Engineering bacteria to clean up oil spills. C) Developing drought-resistant crops to combat climate change. D) Using genetic information to deny individuals health insurance. Show Answer Correct Answer: D) Using genetic information to deny individuals health insurance. 46. Breeding specific animals to obtain offspring that express desired traits refers to which? A) Transgenics. B) Artificial selection. C) DNA sequencing. D) None of the above. Show Answer Correct Answer: B) Artificial selection. 47. Which is a potential ethical issue resulting from the use of biotechnology? A) Deteriorating the ozone layer. B) Causing mass extinction of a species. C) Increasing pollution of natural resources. D) Introducing a genetically-altered species. Show Answer Correct Answer: D) Introducing a genetically-altered species. 48. Bt toxin is obtained from: A) Bacillus thuringiensis. B) Rhizobium. C) Bacillus subtilis. D) Agrobacterium tumefaciens. Show Answer Correct Answer: A) Bacillus thuringiensis. 49. Gel electrophoresis is a laboratory technique used to A) Replicate DNA under laboratory conditions. B) Separate DNA fragments based on their size. C) Replicate DNA or RNA under laboratory conditions. D) Separate and isolate proteins or DNA fragments based on size. Show Answer Correct Answer: D) Separate and isolate proteins or DNA fragments based on size. 50. Which of the following is NOT a key area of Food Biotechnology? A) Food Packaging. B) Microbial Fermentation. C) Genetically Modified Organisms (GMOs). D) Biofortification. Show Answer Correct Answer: A) Food Packaging. 51. A biological molecule made of amino acids and is crucial for life functions is a A) Carbohydrate. B) Lipid. C) Nucleic acid. D) Protein. Show Answer Correct Answer: D) Protein. 52. Which of the following genes were introduced in cotton to protect it from cotton bollworms? A) Cry Ac and CryAb. B) BtAc and Btab. C) CrylAc and CryllAb. D) Nif genes. Show Answer Correct Answer: C) CrylAc and CryllAb. 53. Which of these is a type of genetic modification? A) Use of herbicides. B) Crossbreeding. C) Gene Splicing. D) Kidney Surgery. Show Answer Correct Answer: C) Gene Splicing. 54. Simple ring of DNA from prokaryotes A) Restriction enzymes. B) Gene. C) Plasmid. D) Recombinant DNA. Show Answer Correct Answer: C) Plasmid. 55. Gene therapy can permanently cure genetic diseases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. The sticky ends of a fragmented DNA molecule are made of A) Methyl groups. B) Calcium salts. C) Endonuclease enzyme. D) Unpaired bases. Show Answer Correct Answer: D) Unpaired bases. 57. "fish farming" the growth of aquatic plants or animals for food. A) Biotechnology. B) Aquaculture. C) Bioremediation. D) Genetic modification. Show Answer Correct Answer: B) Aquaculture. 58. What is the primary goal of using tissue culture in plant biotechnology? A) To enhance plant color. B) To increase plant fragrance. C) To increase plant size. D) To produce disease-free plants. Show Answer Correct Answer: D) To produce disease-free plants. 59. Yogurt terbuat dari susu dengan menggunakan bakteri Lactobacillus bulgaricus, proses yang terjadi pada fermentasinya adalah A) Pemisahan lemak menjadi asam lemak. B) Pengubahan susu menjadi alkohol dan gula. C) Penguraian susu menjadi lemak berprotein. D) Pada masa inkubasi dihasilkan asam laktat. Show Answer Correct Answer: C) Penguraian susu menjadi lemak berprotein. 60. Autonomously replicating circular extra-chromosomal DNA is called A) Plasmid. B) Restriction enzyme. C) Marker. D) Vector. Show Answer Correct Answer: A) Plasmid. 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