This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... tissue helps in insulation, supply of energy. A) Areolar tissue. B) Adipose tissue. C) Lymph. D) Tendon. Show Answer Correct Answer: B) Adipose tissue. 2. Why did scientists edit the genes of bacteria to produce insulin? A) Because the bacteria were diabetic. B) Because bacteria have simple DNA that is easier to manipulate, making it easy to produce insulin in a lab. C) Because insulin has no use outside of a lab setting. D) Because bacteria's complex DNA was perfect for insulin production. Show Answer Correct Answer: B) Because bacteria have simple DNA that is easier to manipulate, making it easy to produce insulin in a lab. 3. What is the criterion for DN A fragments movement on agarose gel during gel electrophoresis? A) The smaller the fragment size, the farther it moves. B) Negatively charged fragments do not move. C) The larger the fragment size, the farther it moves. D) Positively charged fragments move to farther end. Show Answer Correct Answer: A) The smaller the fragment size, the farther it moves. 4. Which career field would most likely be involved in the creation of transgenic organisms that produce insulin? A) Medical. B) Manufacturing. C) Construction. D) Agriculture. Show Answer Correct Answer: A) Medical. 5. The first chemically defined media was formulated by A) Thomson. B) Grace. C) Eagle. D) Earle. Show Answer Correct Answer: C) Eagle. 6. What is the main function of lipids in food? A) Enhancing flavor. B) Increasing shelf life. C) Providing energy. D) Improving texture. Show Answer Correct Answer: C) Providing energy. 7. Which is a way the agricultural biotechnology industry could have a positive impact on the environment? A) B by making robots to replace large farm machines. B) A by producing crops that are virus resistant. C) D by increasing the use of wind farms that produce electricity. D) C by reducing the need for countries to import food. Show Answer Correct Answer: D) C by reducing the need for countries to import food. 8. The thermostable enzyme DNA polymerase is obtained from A) Meloidogyne incognitia. B) Escherichia coli. C) Thermus aquaticus. D) Agrobacterium tumifaciens. Show Answer Correct Answer: C) Thermus aquaticus. 9. The two polypeptides of human insulin are linked together by A) Hydrogen bonds. B) Disulphide bridges. C) Phosphodiester bonds. D) Covalent bonds. Show Answer Correct Answer: B) Disulphide bridges. 10. What would be an economic benefit of bioremediation in a coastal town that just experienced an oil spill? A) The cost of purified water will increase resulting in more revenue for the town. B) Water and land areas will be cleaned of oil, encouraging more tourists to visit the town and spend money there. C) The oil from the spill will be recovered from bioremediation and used as fuel in future. D) None of the above. Show Answer Correct Answer: B) Water and land areas will be cleaned of oil, encouraging more tourists to visit the town and spend money there. 11. What is a STEM cell? A) An unspecialized cell, capable of differentiating into one or more cell types. B) An unspecialized cell that has differentiated to become a specific cell. C) A differentiated cell that is capable of specializing. D) A cell that is taken from the cell tissue of a plant. Show Answer Correct Answer: A) An unspecialized cell, capable of differentiating into one or more cell types. 12. DNA fragments are A) Either negatively or positively charged depending on their size. B) Positively charged. C) Negatively charged. D) Neutral. Show Answer Correct Answer: C) Negatively charged. 13. Drug-resistance genes could be transferred by which of the following mechanisms: A) Conjugation. B) Bacteriophages. C) Transformation. D) A, b, and c. Show Answer Correct Answer: D) A, b, and c. 14. How can using genetically engineered crops impact North Carolina's economy? A) Improve quality of farm equipment. B) Decreased availability of productive land. C) Decreased food production and more debt for farmers. D) Increased food production and income for the farmers. Show Answer Correct Answer: D) Increased food production and income for the farmers. 15. Microorganisms can only be seen with a microscope. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Process of making changes in the DNA code of humans. A) Agriculture. B) DNA. C) Genome. D) Genetic engineering. Show Answer Correct Answer: D) Genetic engineering. 17. The biological and chemical methods that change the arrangement of DNA that makes up a gene. A) Mutations. B) Variations. C) Genetic engineering. D) Principle of superposition. Show Answer Correct Answer: C) Genetic engineering. 18. You were at your doctor's office and he/she prescribed a new drug for your allergies. The nurse gave you a sample to try before buying the new medicine who would have given him/her the sample? A) Pharmaceutical technician. B) Pharmaceutical scientist. C) Pharmaceutical data specialist. D) Pharmaceutical sale representative. Show Answer Correct Answer: D) Pharmaceutical sale representative. 19. Bacteriophages (bacterial viruses) participate in this gene transfer A) Transduction. B) Conjugation. C) Transformation. D) Translation. Show Answer Correct Answer: A) Transduction. 20. Who invented PCR? A) Avery, McLeod, McCarty. B) Kary Mulis. C) Karl Erkey. D) Robert Koch. Show Answer Correct Answer: B) Kary Mulis. 21. ..... conduct research in areas such as pharmaceuticals, using bioinformatic theories and methods. A) Biochemists. B) Bioinformatics technician. C) Quality control technician. D) Bioinformatics scientists. Show Answer Correct Answer: D) Bioinformatics scientists. 22. Biotechnology products can improve the agricultural field by doing which of the following? A) Making human insulin for the treatment of diabetes. B) Producing crops resistant to pest. C) Combating crime through DNA testing. D) Allowing us to manipulate organisms for desired traits. Show Answer Correct Answer: B) Producing crops resistant to pest. 23. The process of RNA interference has been used in the development of plants resistant to A) Insects. B) Nematodes. C) Viruses. D) Fungi. Show Answer Correct Answer: B) Nematodes. 24. Manfaat yang diperoleh manusia dari perbanyakan tanaman secara kultur jaringan adalah ..... A) Menggantikan media tanah dengan media lain, seperti pasir dan arang. B) Sifat yang dimiliki tanaman merupakan sifat yang unggul. C) Menghasilkan tanaman yang berbuah lebih banyak dibandingkan induknya. D) Tanaman yang dihasilkan sangat banyak dan mempunyai sifat sama dengan induk. Show Answer Correct Answer: D) Tanaman yang dihasilkan sangat banyak dan mempunyai sifat sama dengan induk. 25. Which of the following describes the minimum number of restriction sites on a plasmid if there are 3 fragments on the gel electrophoresis? A) 1. B) 3. C) 2. D) 4. Show Answer Correct Answer: B) 3. 26. In gel electrophoresis, towards which terminal do DNA fragments move? A) Negatively charged terminal. B) Positively charged terminal. C) Ground terminal. D) Neutral terminal. Show Answer Correct Answer: B) Positively charged terminal. 27. Through the use of biotechnology, cotton crops have been developed so they are resistant to the boll weevil. Which would be the most likely effect in North Carolina? A) The quality of the cotton would decrease. B) Less cotton would be grown and harvested. C) More money would be spent on insecticides. D) Each acre of land would have a higher yield of cotton. Show Answer Correct Answer: D) Each acre of land would have a higher yield of cotton. 28. What scientist studies bacteria, viruses, and fungi? A) Clinical engineer. B) Geneticist. C) Microbiologist. D) Biochemist. Show Answer Correct Answer: C) Microbiologist. 29. What is the role of insulin in the human body? A) It breaks down glucose into energy. B) It stimulates appetite. C) It helps cells take up glucose. D) It regulates blood pressure. Show Answer Correct Answer: C) It helps cells take up glucose. 30. Biolistics is best suited for A) Animal cells. B) Plant cells. C) Microorganisms. D) None of the above. Show Answer Correct Answer: B) Plant cells. 31. What is the DNA obtained after modification known as? A) Mutant DNA. B) Original DNA. C) Cloned DNA. D) Recombinant DNA. Show Answer Correct Answer: D) Recombinant DNA. 32. Which of the following is not a cloning vector? A) PBR322. B) Cosmid. C) Phagemid. D) Sal I. Show Answer Correct Answer: D) Sal I. 33. The insertion of a gene of interest into a bacterial DNA loop is called A) Recombinant DNA. B) Insertion technique. C) Mutation propagation. D) None of the above. Show Answer Correct Answer: A) Recombinant DNA. 34. What happens to the DNA template during the denaturation step? A) It is cooled to attach primers. B) It is heated to separate strands. C) It is cut into fragments. D) It is replicated. Show Answer Correct Answer: B) It is heated to separate strands. 35. Proteins can be removed via treatment by? A) Treatment with sodium hydroxide. B) Phenol and chloroform treatment. C) Chloroform treatment alone. D) Centrifuging. Show Answer Correct Answer: B) Phenol and chloroform treatment. 36. Cows are selectively bred to produce milk. Which of the following will cause the next generation to receive the trait to produce large quantities of milk? A) Information in their chromosomes. B) Electrical impulses to their brains. C) Nutrients in their food. D) Mineral in their water. Show Answer Correct Answer: A) Information in their chromosomes. 37. Which was most likely the earliest way biotechnology was studied by humans? A) Finding evidence of crimes. B) Making new medicines to cure sicknesses. C) Discovering the cause of hereditary diseases. D) Breeding better varieties of crops and livestock. Show Answer Correct Answer: D) Breeding better varieties of crops and livestock. 38. Which best describes a controversial issue associated with the use of genetically modified crops? A) The use of genetically modified crops to increase potential yield. B) The short term use of genetically modified crops in famine stricken countries. C) The development of genetically modified crops which are more nutrient dense. D) The long term effects which may arise from the use of genetically modified crops. Show Answer Correct Answer: D) The long term effects which may arise from the use of genetically modified crops. 39. The rapid production of a large number of identical clones in vitro within a short duration is A) Phytoremediation. B) Micropropagation. C) Organ culture. D) Macropropagation. Show Answer Correct Answer: B) Micropropagation. 40. Who gave the term biotechnology? A) Karl Erkey. B) Louis pasture. C) Robert Koch. D) Edward Jenner. Show Answer Correct Answer: A) Karl Erkey. 41. The restriction enzyme, ECORI, cuts DNA between which two nitrogenous bases? A) Between guanine (G) and cytosine (C). B) Between adenine (A) and thymine (T). C) Between guanine (G) and adenine (A). D) Between thymine (T) and cytosine (C). Show Answer Correct Answer: C) Between guanine (G) and adenine (A). 42. ..... connect muscles to bones A) Tendons. B) Ligaments. C) Nerves. D) Cartilages. Show Answer Correct Answer: A) Tendons. 43. Which of the following is a method of gene transfer in plants? A) Agrobacterium-mediated transformation. B) Photosynthesis enhancement. C) Gene editing using CRISPR. D) Natural selection. Show Answer Correct Answer: A) Agrobacterium-mediated transformation. 44. Considering some of the ethical issues surrounding the use of DNA technology, which is a way gene therapy impacted society? A) By correcting genetic disorders with insertion of normal genes. B) By engineering genes to be able to replace a person's DNA. C) By using genes in psychiatry to provide therapy to patients. D) By mapping the genetic make-up of non-living objects. Show Answer Correct Answer: A) By correcting genetic disorders with insertion of normal genes. 45. Who is dolly the sheep? A) A cloned sheep. B) A ordinary sheep. C) I don't know. D) None of the above. Show Answer Correct Answer: A) A cloned sheep. 46. A small molecule that binds to the repressor and makes it inactive is A) Promoter. B) Operator. C) Inducer. D) Corepressor. Show Answer Correct Answer: C) Inducer. 47. Wolves and household dogs are members of the same family; however, their sizes are vastly different. What is the cause of this difference? A) Biochemical makeup. B) Habitual size. C) Genetics. D) Behavioral makeup. Show Answer Correct Answer: C) Genetics. 48. ..... enzyme is used in the elongation/ extension of DNA fragment in PCR reaction A) DNA/ Tag Polymerase. B) Revers transcriptase. C) E. Co RI. D) All. Show Answer Correct Answer: B) Revers transcriptase. 49. Multiple Choice Questions (1-25)-Who is known as the father of genetic engineering? A) Herbert Boyer. B) Kary Mullis. C) Stanley Cohen. D) Watson and Crick. Show Answer Correct Answer: A) Herbert Boyer. 50. Which statement correctly describes a way that bacteria are used in biotechnology? A) Bacteria that make insulin are implanted in humans. B) Bacteria make human cells that make insulin. C) Human insulin made by bacteria is injected into humans. D) Human insulin coding bacterial genes are spliced into human cells. Show Answer Correct Answer: C) Human insulin made by bacteria is injected into humans. 51. What enzyme joins the ends of two strands of nucleic acid? A) Synthetase. B) Helicase. C) Ligase. D) Polymerase. Show Answer Correct Answer: C) Ligase. 52. In capillary electrophoresis, DNA fragments move from which electrode to which electrode? A) Positive to negative. B) Negative to positive. C) Neutral to positive. D) Neutral to negative. Show Answer Correct Answer: B) Negative to positive. 53. Which of the following is an advantage of genetic engineering? A) Introduces genetically altered bacteria to the environment. B) Nutritional value of food is increased. C) Kills species that were not intended to be affected. D) Little research on long term effects on health. Show Answer Correct Answer: B) Nutritional value of food is increased. 54. The plasmid Ti is found in ..... A) Rhizobium. B) Escherichia coli. C) Bacillus thuringiensis. D) Agrobacterium tumefaciens. Show Answer Correct Answer: D) Agrobacterium tumefaciens. 55. What is ring worm caused by? A) Fungi. B) Virus. C) Bacteria. D) Parasite. Show Answer Correct Answer: A) Fungi. 56. Protein products of Bt genes cry IAc and cry IIAb control . A) Moth. B) Bollworms. C) Roundworm. D) Fruitfly. Show Answer Correct Answer: B) Bollworms. 57. The tryptophan operon is A) Turned on when tryptophan is present in the growth medium. B) Turned off when tryptophan is added to the growth medium. C) Permanently turned on. D) Turned off only when glucose is present in the growth medium. Show Answer Correct Answer: B) Turned off when tryptophan is added to the growth medium. 58. Living or once-living A) Stem cell. B) Organic. C) Gene. D) Cloning. Show Answer Correct Answer: B) Organic. 59. Restriction endonucleases cut A) Single stranded DNA. B) Single stranded RNA. C) Double stranded DNA. D) Double stranded RNA. Show Answer Correct Answer: C) Double stranded DNA. 60. Viruses reproduce inside cells until the cells burst. True or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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 3Class 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 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