This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Measles is a disease caused by a virus. Which is the most effective way to keep measles from spreading? A) Giving antiviral medicine to people who have measles. B) Having healthy people wash hands often. C) Giving antibiotics to people with measles. D) Vaccinating healthy people against measles. Show Answer Correct Answer: D) Vaccinating healthy people against measles. 2. What is the process in which an unspecialized stem cell turns into a specialized body cell? A) Differentiation. B) Respiration. C) Genetic Modification. D) DNA Replication. Show Answer Correct Answer: A) Differentiation. 3. DNA fingerprinting is based on: A) MRNA sequences. B) Protein patterns. C) Repetitive DNA sequences. D) Lipid profiles. Show Answer Correct Answer: C) Repetitive DNA sequences. 4. Which of the following is molecular scissors? A) EcoRI. B) Hind III. C) Bam H II. D) All of these. Show Answer Correct Answer: D) All of these. 5. In the lac operon model, the genes within the operon will be expressed if A) Tryptophan is present. B) Lactose is absent in the cell. C) Glucose is present in the cell. D) Lactose is present in the cell. Show Answer Correct Answer: D) Lactose is present in the cell. 6. To make an identical copy of an organism using its DNA. A) Modify. B) Cloning. C) Aquaculture. D) Gene. Show Answer Correct Answer: B) Cloning. 7. Which of the following best describes the ethical concern of 'playing God' in biotechnology? A) Using natural selection to breed animals. B) Altering the natural genetic makeup of organisms. C) Increasing crop yields through traditional farming. D) Developing new flavors of fruits through cross-breeding. Show Answer Correct Answer: B) Altering the natural genetic makeup of organisms. 8. Bioreactor are used as A) High level of pH. B) Low level of pH. C) Temperature control. D) Both a and b. Show Answer Correct Answer: C) Temperature control. 9. A key advantage of grouping genes with related functions is that a single "on-off" switch can control the whole cluster. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Metals used for coating DNA fragment in wireless stick method are A) Gold and iron. B) Gold and platinum. C) Tungsten and magnesium. D) Tungsten and gold. Show Answer Correct Answer: D) Tungsten and gold. 11. A single strand of nucleic acid tagged with a radioactive molecule is called A) Probe. B) Selectable marker. C) Vector. D) Plasmid. Show Answer Correct Answer: A) Probe. 12. T6-How do scientists cut DNA into smaller strands? A) Restriction enzymes. B) Scissors. C) Ligase. D) Agarose. Show Answer Correct Answer: A) Restriction enzymes. 13. Which example represents a modern biotechnology technique that raises potential ethical issues? A) Using bacteria to make biofuel. B) Transferring blood from one person to another. C) Crossbreeding two different plants. D) Adding animal genes to a plant. Show Answer Correct Answer: D) Adding animal genes to a plant. 14. How has genetic modification most likely affected the safety and availability of fruits and vegetables? A) It has decreased the safety and availability of fruits and vegetables. B) It has increased the safety and availability of fruits and vegetables. C) It has decreased the safety of food, but increased the availability of fruits and vegetables. D) It has increased the safety of food, but decreased the availability of fruits and vegetables. Show Answer Correct Answer: B) It has increased the safety and availability of fruits and vegetables. 15. What is an ethical consideration in genetic engineering? A) Animal welfare. B) Increasing crop yields. C) Improving technology access. D) Reducing laboratory costs. Show Answer Correct Answer: A) Animal welfare. 16. What are genetically modified organisms abbreviated as? A) GMOs. B) GTOs. C) GEOs. D) GROs. Show Answer Correct Answer: A) GMOs. 17. Which one of the following restriction endonuclease is obtained from Escherichia coli? A) Hind III. B) EcoR1. C) BamH1. D) Sua 3A1. Show Answer Correct Answer: B) EcoR1. 18. Contoh dari bioteknologi konvensional adalah ..... A) Planlet. B) Transgenik. C) Fermentsi. D) Kloningindividu. Show Answer Correct Answer: C) Fermentsi. 19. Sillage contains protein, oil and water and can be used as: A) Animal feed. B) An industrial antiseptic. C) A gasoline substitute. D) Hair gel. Show Answer Correct Answer: A) Animal feed. 20. One problem with selective breeding is A) Creating a new species. B) Gene variety is lost. C) Extinction of a species. D) None of the above. Show Answer Correct Answer: B) Gene variety is lost. 21. What is the primary goal of genetic engineering in agriculture? A) To increase crop yield and resistance to pests. B) To improve the taste of food. C) To reduce the size of plants. D) To change the color of flowers. Show Answer Correct Answer: A) To increase crop yield and resistance to pests. 22. Multiple Choice Questions (1-25)-Polymerase Chain Reaction (PCR) was invented by: A) Stanley Cohen. B) Boyer. C) Kary Mullis. D) Watson. Show Answer Correct Answer: C) Kary Mullis. 23. Which sequence can act as a restriction site A) GGTTGGCCAACC. B) AACCGGTTGGCC. C) AAGGCTTTCCGA. D) CTGCAGGACGTC. Show Answer Correct Answer: D) CTGCAGGACGTC. 24. What is solidifying agent used in culture media A) Silica gel. B) Agar-agar. C) Sucrose. D) Activated carbon. Show Answer Correct Answer: B) Agar-agar. 25. An allele is dominant in a heterozygote when it is A) Expressed and the other allele is not. B) A very common allele in a population. C) The stronger of the two alleles. D) More desirable then the other allele. Show Answer Correct Answer: A) Expressed and the other allele is not. 26. The enzymes which are commonly used in genetic engineering are A) Restriction endonuclease and polymerase. B) Endonuclease and ligase. C) Restriction endonuclease and ligase. D) Ligase and polymerase. Show Answer Correct Answer: B) Endonuclease and ligase. 27. The extraction of separated bands of DNA by cutting out them from the agarose gel is A) Denaturation. B) Fragmentation. C) Elution. D) None of the above. Show Answer Correct Answer: C) Elution. 28. Restriction endonuclease A) Break DNA at specific sites. B) Create sticky ends. C) Produce cross-overs. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 29. Sally needs a brace that is not currently available. Her doctor is working with this healthcare professional to design and create a brace for her. What healthcare professional does this for patients? A) Biochemist. B) Quality control technician. C) Biostatistician. D) Biomedical engineer. Show Answer Correct Answer: D) Biomedical engineer. 30. Which is the best example of an antibiotic? A) Aspirin. B) Penicillin. C) Vaccine. D) Ibuprofen. Show Answer Correct Answer: B) Penicillin. 31. If a company genetically modifies corn to produce an odor that repels insects, which best describes how the corn was modified? A) By techniques used in biotechnology. B) By crop rotation techniques. C) By harvesting at different times. D) By chemical exposure. Show Answer Correct Answer: A) By techniques used in biotechnology. 32. The word biotechnology has been in use since the A) 2000s. B) 1900s. C) 1800s. D) 1700s. Show Answer Correct Answer: B) 1900s. 33. A:Golden rice is a genetically modified crop. R:It contains $\beta$-carotene gene which produces vitamin A precursor. Choose the correct option about A and R. A) Both A and R are true, and R is the correct explanation of A. B) Both A and R are true, but R is not the correct explanation of A. C) A is true, but R is false. D) A is false, but R is true. Show Answer Correct Answer: A) Both A and R are true, and R is the correct explanation of A. 34. Selain dimanfaatkan dalam pembuatan kecap Aspergillus wentii dapat pula digunakan dalam pembuatan produk ..... A) Tauco. B) Yogurt. C) Margarin. D) Keju. Show Answer Correct Answer: A) Tauco. 35. The "Cry1Ac" gene provides resistance against: A) Cotton bollworm. B) Corn borer. C) Nematodes. D) Aphids. Show Answer Correct Answer: A) Cotton bollworm. 36. What is one way to deliver DNA into a cell if plasmids are not ideal? A) Electrophoresis. B) Diffusion. C) Osmosis. D) Microinjection. Show Answer Correct Answer: D) Microinjection. 37. Gene therapy is successful if the ..... A) New gene is expressed as a protein. B) New gene is replicated in DNA. C) Virus carrying the gene can insert it into DNA. D) DNA can be placed in a virus. Show Answer Correct Answer: A) New gene is expressed as a protein. 38. Which one of the following is used as vector for cloning genes into animals A) Retrovirus. B) Rhizopus nigricans. C) Baculovirus. D) Salmonella typhimurium. Show Answer Correct Answer: A) Retrovirus. 39. Penisilin adalah antibiotik yang dapat dihasilkan oleh ..... A) Penicilium notatum. B) Eschericia coli. C) Saccaromyces cerevisiae. D) Pseudomonas sp. Show Answer Correct Answer: A) Penicilium notatum. 40. A type of selective breeding that results in a higher amount of recessive genes. A) Genetic Engineering. B) In-Breeding. C) Cloning. D) Hybridization. Show Answer Correct Answer: B) In-Breeding. 41. Which project is most likely to be worked on by a biotechnician? A) Developing plants with resistance to high temperatures. B) Developing architectural designs for houses in floodplains. C) Discovering different isotopes of existing elements in the periodic table. D) Designing lightweight, strong metallic alloys for use in car manufacturing. Show Answer Correct Answer: A) Developing plants with resistance to high temperatures. 42. What is a restriction enzyme? A) A protein that cuts DNA at specific sequences, essential for creating recombinant DNA. B) A type of enzyme that synthesizes RNA from a DNA template. C) An enzyme that repairs damaged DNA strands. D) A protein that binds to DNA and prevents transcription. Show Answer Correct Answer: A) A protein that cuts DNA at specific sequences, essential for creating recombinant DNA. 43. Which of the following companies started selling humulin in the year 1983? A) EliLilly. B) Genetech. C) GEAC. D) None of these. Show Answer Correct Answer: A) EliLilly. 44. The process of changing the genetic material of a living organism A) Adapting. B) Taxonomy. C) Bioremediation. D) Genetic Modification. Show Answer Correct Answer: D) Genetic Modification. 45. Which procedure is the final step in the production of a transgenic organism? A) Recombinant DNA is transferred to a bacterial cell. B) The DNA segment to be inserted is isolated. C) A specific gene in a DNA sequence is identified. D) The DNA segment is combined into a plasmid. Show Answer Correct Answer: A) Recombinant DNA is transferred to a bacterial cell. 46. What is the function of a restriction enzyme? A) To keep DNA from replicating. B) To cut DNA into smaller fragments. C) To restrict enzymes from working. D) To speed up the reaction of DNA polymerase. Show Answer Correct Answer: B) To cut DNA into smaller fragments. 47. Tobacco plants resistant to nematodes have been developed by introduction of DNA that produces ..... A) Both sense and antisense RNA. B) An antifeedant. C) A Toxic Protein. D) A Particular Hormone. Show Answer Correct Answer: A) Both sense and antisense RNA. 48. Which is a benefit of genetically-modified foods? A) The cost of research is included in the cost to the consumer. B) The cost of food decreases and the quality of food increases. C) Genetically modified foods won't need to be studied. D) "gmo's" are completely resistant to disease and drought. Show Answer Correct Answer: B) The cost of food decreases and the quality of food increases. 49. Biotechnology affects different people and groups in different ways. Which of these uses of biotechnology would be most beneficial for the environment? A) A treatment of wastewater with microbes. B) A liquid for pets to drink to eliminate bad odors. C) A fertilizer for crops to improve growth. D) The use of microbes to remove algae. Show Answer Correct Answer: A) A treatment of wastewater with microbes. 50. Satellite DNA is useful tool in A) Organ transplantation. B) Genetic engineering. C) Forensic science. D) Sex determination. Show Answer Correct Answer: C) Forensic science. 51. Cell type that is capable of continuous growth for indefinite period of time is A) Stem culture. B) Tissue culture. C) Cell culture. D) Cell lines. Show Answer Correct Answer: D) Cell lines. 52. The process of putting recombinant DNA into an organism is called ..... A) Ligating. B) Incubating. C) Electrophoresis. D) Transformation. Show Answer Correct Answer: D) Transformation. 53. Mikroorganisme yang digunakan dalam proses pembuatan tape adalah ..... A) Lactobacillus Bulgaricus. B) Acetobacter Xylinum. C) Rhizopus Oryzae. D) Saccharomyces Cerevisceae. Show Answer Correct Answer: D) Saccharomyces Cerevisceae. 54. In bread making, what microorganism eats the sugar in bread dough which gives off carbon dioxide gas and alcohol? A) Bacteria. B) Yeast. C) Virus. D) Amoeba. Show Answer Correct Answer: B) Yeast. 55. A condition which prevents their eyes, ears, or brain from working properly. Disability, condition, disorder, defect . A) Amputation. B) Impairment. C) Exo-skeleton. D) Implant. Show Answer Correct Answer: B) Impairment. 56. What was the purpose of the Human Genome Project A) To sequence all of the genes in humans. B) To find every disease in humans. C) To name all of the nucleotides in humans. D) To project all of the human's into a genome. Show Answer Correct Answer: A) To sequence all of the genes in humans. 57. A gene whose expression helps to identify transformed cell is known as A) Structural gene. B) Plasmid. C) Vector. D) Selectable marker. Show Answer Correct Answer: D) Selectable marker. 58. Which of these is a challenge in plant biotechnology? A) Easy and cheap processes. B) Addressing ethical concerns. C) Making plants less useful. D) Decreasing crop diversity. Show Answer Correct Answer: B) Addressing ethical concerns. 59. Genetic engineering has been used to produce A) Medicines. B) Food animals. C) Improved crops. D) All of these. Show Answer Correct Answer: D) All of these. 60. Which of the following subjects would someone most likely study if he or she wanted to work in the biotechnology field? A) Chemistry. B) Genetics. C) Environmental Science. D) Physics. Show Answer Correct Answer: B) Genetics. ← 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 6Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 7Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books