This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. DNA precipitation out of a mixture of biomolecules can be achieved by treatment with A) Chilled ethanol. B) Chilled chloroform. C) Methanol at room temperature. D) Isopropanol. Show Answer Correct Answer: A) Chilled ethanol. 2. An enzyme produced in response to the presence of a substrate is called a(n) A) Promoter. B) Inducible enzyme. C) Restriction enzyme. D) Repressible enzyme. E) Operator. Show Answer Correct Answer: B) Inducible enzyme. 3. The pattern for DNA fingerprinting is created because the smaller fragments will move ..... than the larger fragments and travel ..... A) Faster, nearer. B) Slower, further. C) Faster, further. D) Slower, nearer. Show Answer Correct Answer: C) Faster, further. 4. Which process in plant biotechnology involves the insertion of foreign genes into a plant's genome to enhance its traits? A) Gene Editing. B) Gene Cloning. C) Gene Insertion. D) Gene Splicing. Show Answer Correct Answer: A) Gene Editing. 5. What is the term used for the process of making an exact duplicate of the genetic material? A) Cell culture. B) Genetic modification. C) Gene cloning. D) Vaccine production. Show Answer Correct Answer: C) Gene cloning. 6. The Human Genome Project has made diagnosing genetic disorders easier.Once a genetic disorder is diagnosed, ..... can be used as a possible treatment. A) PCR. B) Cell cultures. C) Gene therapy. D) DNA fingerprinting. Show Answer Correct Answer: C) Gene therapy. 7. Which of the following is a common application of CRISPR technology in biotechnology? A) Producing biofuels. B) Editing genes to treat genetic disorders. C) Cloning entire organisms. D) Synthesizing new proteins. Show Answer Correct Answer: B) Editing genes to treat genetic disorders. 8. How has genetic engineering helped farming? A) By producing soil that makes crops grow better. B) By producing faster ways to harvest crops. C) By developing better fertilizer for crops. D) By creating crops that resist some diseases. Show Answer Correct Answer: D) By creating crops that resist some diseases. 9. A genetically engineered organism that contains a new gene from a different organism is called? A) Transgenic. B) Multigenic. C) Genetic. D) Bacterial. Show Answer Correct Answer: A) Transgenic. 10. How has biotechnology helped to improve the agricultural industry? A) By developing irrigation systems that cover a large land area. B) By creating some crops that resist certain insects. C) By producing soil free from decomposers. D) By developing machines that help farmers harvest crops faster. Show Answer Correct Answer: B) By creating some crops that resist certain insects. 11. The procedure through which a piece of DNA is introduced into a host bacterium is A) Cloning. B) Amplification. C) Transformation. D) Restriction. Show Answer Correct Answer: C) Transformation. 12. Southern blot is the technique for ..... blot A) RNA. B) Protein. C) DNA. D) Lipid. Show Answer Correct Answer: C) DNA. 13. DNA that has been formed artificially by combining pieces from different organisms. A) Recombinant DNA. B) Bioremediation. C) DNA fingerprint. D) Gene therapy. Show Answer Correct Answer: A) Recombinant DNA. 14. Which pigment is responsible for the yellow, orange, and red colors in many fruits and vegetables? A) Chlorophyll. B) Anthocyanins. C) Carotenoids. D) Flavonoids. Show Answer Correct Answer: C) Carotenoids. 15. Which best describes the role of DNA? A) Provides genetic information for all living and nonliving organisms. B) Provides genetic information for all living organisms. C) Produces carbohydrates for cellular functions. D) Acts as cellular energy. Show Answer Correct Answer: B) Provides genetic information for all living organisms. 16. Which best describes a vector? A) An alternative form of a gene. B) Used to transfer genetic material from one source to another. C) A beneficial trait that allows an organism to survive. D) A bundle of DNA in the nucleus. Show Answer Correct Answer: B) Used to transfer genetic material from one source to another. 17. Daftar produk bioteknologi:1. insulin2. kecap3. padi tahan kering4. nata de cocoDari daftar di atas yang merupakan produk bioteknologi modern adalah ..... A) 1 dan 3. B) 3 dan 4. C) 1 dan 2. D) 2 dan 4. Show Answer Correct Answer: A) 1 dan 3. 18. ) In plant tissue culture technique surface sterilization of explant is made by ..... A) Hydrochloric acid. B) Nitric acid. C) Mercury chloride. D) Sulphuric acid. Show Answer Correct Answer: C) Mercury chloride. 19. What is the primary role of restriction enzymes in biotechnology? A) To cut DNA at specific sequences. B) To synthesize proteins. C) To amplify DNA sequences. D) To replicate RNA. Show Answer Correct Answer: A) To cut DNA at specific sequences. 20. In the end process of Translation A) Protein synthesis. B) MRNA. C) Silence. D) None of the above. Show Answer Correct Answer: A) Protein synthesis. 21. What is the primary function of proteins in food? A) Storing nutrients. B) Building and repairing tissues. C) Enhancing flavor. D) Providing energy. Show Answer Correct Answer: B) Building and repairing tissues. 22. In the naming of restriction enzymes, the first letter of the name is derived from A) Genus. B) Strain. C) Family. D) None of the above. Show Answer Correct Answer: A) Genus. 23. Which situation is most likely to raise ethical questions about using biotechnology? A) Increased crop yields. B) New vaccine development. C) Increased job opportunities. D) Genetically modified food crops. Show Answer Correct Answer: D) Genetically modified food crops. 24. What pathogen would you use an antibiotic to treat? A) Parasite. B) Bacterium. C) Virus. D) Fungus. Show Answer Correct Answer: B) Bacterium. 25. In gel electrophoresis, smaller DNA move ..... A) Farther and faster. B) As slow as a turtle. C) To the negative side of the gel. D) To the positive side of the gel. Show Answer Correct Answer: A) Farther and faster. 26. Makanan yang dibuat melalui proses bioteknologi adalah ..... A) Yogurt, keju, oncom. B) Asinan, coconut oil, bir. C) Tahu, nata de coco, tempe. D) Kecap, roti tawar, tart. Show Answer Correct Answer: A) Yogurt, keju, oncom. 27. Which is a concern of scientists when genetically modifying plants? A) Plants will pass on disease to animals. B) Plants will have a longer growing season. C) There will be a decrease in revenue for the pesticide industry. D) There will be a decrease in biodiversity. Show Answer Correct Answer: D) There will be a decrease in biodiversity. 28. Mendel was able to identify predictable patterns of heredity. He succeeded mainly because he chose to study traits that A) Were always dominant. B) Had only two forms. C) Tended to be recessive. D) Could be diluted. Show Answer Correct Answer: B) Had only two forms. 29. The term competent refers to A) Increasing the competition between sales. B) Making cells impermeable for DNA. C) Increasing the efficiency with which DNA enters the bacterium through pores in its cell wall. D) Making cells permeable for divalent cations. Show Answer Correct Answer: C) Increasing the efficiency with which DNA enters the bacterium through pores in its cell wall. 30. A technology in which the genome of a living cell is modified for medical or industrial use. A) Biotechnology. B) Artificial selection. C) Clone. D) Genetic engineering. Show Answer Correct Answer: D) Genetic engineering. 31. True or False:Biotechnology can be used to employ microbes to remove pollution from the atmosphere and waters of Earth. It has applications in not just environmental aspects like this but also in medical and industrial. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. Which potential problem could occur from recent increases in genetically modified crops? A) Increased crop yield. B) Lower genetic diversity in crop species. C) Increased risk to crops from environmental stresses. D) Improved taste, texture, appearance, and nutritional qualities of food. Show Answer Correct Answer: B) Lower genetic diversity in crop species. 33. The scientist who developed genetically engineered insulin was ..... A) Herbert Boyer. B) Eli Lilly Company. C) Stanley Cohen. D) Paul Berg. Show Answer Correct Answer: B) Eli Lilly Company. 34. The cells which have the ability to differentiate into different types of cells are called A) Unipotent. B) Multipotent. C) Apotent. D) Totipotent. Show Answer Correct Answer: B) Multipotent. 35. Cry-IAb endotoxins obtained from Bacillus thuringiensis are effective against A) Mosquitoes. B) Nematodes. C) Ballworms. D) Corn borer. Show Answer Correct Answer: D) Corn borer. 36. Which process is used to make many copies of a DNA sample? A) Gel electrophoresis. B) DNA sequencing. C) Restriction enzyme producing DNA fragments. D) PCR. Show Answer Correct Answer: D) PCR. 37. Kumi graduated from a community college and is lab technician . What degree did she receive? A) Associate. B) Bachelor s. C) Master s. D) Doctoral. Show Answer Correct Answer: A) Associate. 38. ..... uses bacteria to clean up our surrounding. A) Crossbreeding. B) Bioremediation. C) Genetic Modification. D) Genome. Show Answer Correct Answer: B) Bioremediation. 39. Multiple Choice Questions (1-25)-The term biotechnology was first used by: A) Karl Ereky. B) Louis Pasteur. C) Kary Mullis. D) Boyer. Show Answer Correct Answer: A) Karl Ereky. 40. If you wanted to talk to someone about a possible hereditary condition that runs in your family before getting pregnant who should you make an appointment with from the list below? A) Cell biologist. B) Biochemist. C) Family doctor. D) Geneticist. Show Answer Correct Answer: D) Geneticist. 41. What is the general formula for carbohydrates? A) C3H6O3. B) Cx(H2O)y. C) C6H12O6. D) C12H22O11. Show Answer Correct Answer: B) Cx(H2O)y. 42. What is involved in creating genetically modified bacteria A) Allowing to reproduce freely. B) Changing food source. C) Using biotech methods. D) Growing them on plants. Show Answer Correct Answer: C) Using biotech methods. 43. Bacterial DNA is ..... than human DNA A) More simple. B) Deadlier. C) Uglier. D) Less simple. Show Answer Correct Answer: A) More simple. 44. Which is an application of biotechnology? A) Creating synthetic (artificial) insulin. B) Destroying all kinds of bacteria. C) Producing medicines from nonliving things. D) Growing crops through natural methods. Show Answer Correct Answer: A) Creating synthetic (artificial) insulin. 45. Which best describes the process where genes from one organism are inserted into the DNA of another organism? A) Genetic coding. B) Genetic engineering. C) Genetic evolution. D) Genetic adaption. Show Answer Correct Answer: B) Genetic engineering. 46. The restriction site found in tetracycline resistant gene of pBR322 A) Pst I. B) BamH I. C) Pvu I. D) EcoRI. Show Answer Correct Answer: B) BamH I. 47. What is the significance of the CRISPR-Cas9 system in plant biotechnology? A) It is a tool for precise gene editing. B) It enhances photosynthesis. C) It is used for traditional breeding. D) It increases plant size. Show Answer Correct Answer: A) It is a tool for precise gene editing. 48. The physical insertion of "good" copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder A) Gene therapy. B) Cloning. C) Selective breeding. D) Karyotype. Show Answer Correct Answer: A) Gene therapy. 49. The prefix micro means very large. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 50. What is true of plasmid ..... A) Found in viruses. B) Contains genes for vital activities. C) Part of nuclear chromosome. D) Widely used in gene transfer. Show Answer Correct Answer: D) Widely used in gene transfer. 51. Genetic engineering is used for all the following EXCEPT A) Machinery. B) Farming. C) Agriculture. D) Medicine. Show Answer Correct Answer: A) Machinery. 52. Bacteria that have altered by inserting a frog gene into their DNA is an example of A) Gene therapy. B) Cloning. C) A mutation. D) A transgenic organism. Show Answer Correct Answer: D) A transgenic organism. 53. A desired DNA segment is inserted into small circular DNA from prokaryotes called a ..... and then is inserted into a bacterial host and the resulting combination is called ..... A) Plasmid, recombinant DNA. B) Virus, a eukaryote. C) Virion, recombinant DNA. D) Plasmid, a eukaryote. Show Answer Correct Answer: A) Plasmid, recombinant DNA. 54. Multiple Choice Questions (1-25)-The commonly used plasmid vector in E. coli is: A) Ti plasmid. B) PBR322. C) Lambda phage. D) PUC18. Show Answer Correct Answer: B) PBR322. 55. Which process uses a body cell to create a new organism? A) Genetic modification. B) Cloning. C) Gene splicing. D) Crossbreeding. Show Answer Correct Answer: B) Cloning. 56. Plasmids, yeast, and viruses are known as ..... A) Restriction enzymes. B) Vectors. C) Genetically modified organisms. D) Bacteria. Show Answer Correct Answer: B) Vectors. 57. Mendel begins his experiment with purebred pea plants. This approach enabled him to determine that variations among offspring were the results of A) Random mutations. B) Self-pollination. C) Genetic uniformity. D) His crossings. Show Answer Correct Answer: D) His crossings. 58. What does a Biostatistician do during a normal day? A) Going to different sites to collect samples. B) Conducting research. C) Analyzing the effects of treatment. D) Investigating the effects of chemotherapy on the body. Show Answer Correct Answer: C) Analyzing the effects of treatment. 59. What is the role of biotechnology in agriculture, food processing industry, medicine diagnostics, bioremediation, waste treatment and energy production? A) To study biological systems. B) To improve human lives and the health of the planet. C) To develop new technologies. D) To create new organisms. Show Answer Correct Answer: B) To improve human lives and the health of the planet. 60. Jenis bakteri yang dapat memisahkan logam dari bijihnya yaitu ..... A) Lactobacillus bulgaricus. B) Thiobacillus ferooxidans. C) Thiobacillus thuringiensis. D) Aspergillus oryzae. Show Answer Correct Answer: B) Thiobacillus ferooxidans. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 1Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 2Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 4Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 5Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 6Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 7Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 8Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books