This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Restriction enzymes are used in genetic engineering because: A) They are nuclease that can cut DNA at variable sites. B) They are proteolytic enzymes which can degrade harmful proteins. C) They can join different DNA fragments. D) They can cut DNA at specific base sequence. Show Answer Correct Answer: D) They can cut DNA at specific base sequence. 2. What is the MOST LIKELY result of overusing a particular antibiotic? A) Fewer infections caused by bacteria resistant to the antibiotic. B) More infections caused by bacteria resistant to the antibiotic. C) Fewer infections caused by viruses and bacteria. D) More infections caused by viruses. Show Answer Correct Answer: B) More infections caused by bacteria resistant to the antibiotic. 3. DNA technology is being used to develop crop plants that are A) Less toxic to the pests that normally feed on them. B) More susceptible to herbicides. C) Genetically identical. D) Resistant to insects and diseases. Show Answer Correct Answer: D) Resistant to insects and diseases. 4. What is the role of plasmids in genetic engineering? A) Plasmids are used to synthesize proteins directly. B) Plasmids serve as a source of energy for cells. C) Plasmids act as vectors for gene transfer in genetic engineering. D) Plasmids are responsible for cell division in bacteria. Show Answer Correct Answer: C) Plasmids act as vectors for gene transfer in genetic engineering. 5. What are stem cells? A) Cells that are used to clone humans. B) Cells that come from the human body that can repair cells/tissues. C) Cells that can remove pollutants in the environment. D) Cells that can be used for farming & growing more crops. Show Answer Correct Answer: B) Cells that come from the human body that can repair cells/tissues. 6. Adding or deleting segments of genes to correct or get rid of genetic disorders. A) Genetic Screening. B) Gene Therapy. C) Gene Splicing. D) Stem Cell Therapy. Show Answer Correct Answer: B) Gene Therapy. 7. Perhatikan nama mikroorganisme berikut. 1) Thiobacillus ferooxidans 2) Sterptococcus lactis 3) Lactobacillus lactis 4) Streptomyces sp 5) Aspergillus oryzae Mikroorganisme yang dimanfaatkan dalam pengolahan pangan adalah ..... A) 2, 3, dan 4. B) 2, 3, dan 5. C) 1, 3, dan 5. D) 1, 3, dan 4. Show Answer Correct Answer: B) 2, 3, dan 5. 8. DNA made from two (2) or more sources is called ..... A) Bacterial DNA. B) Messenger DNA. C) Recombinant DNA. D) Artificial DNA. Show Answer Correct Answer: C) Recombinant DNA. 9. Which of the following is a tool of recombinant DNA technology? A) Cloning vectors. B) Ligase enzymes. C) Restriction enzymes. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. Which of these is NOT an example of Biotechnology? A) Creating oil eating bacteria to clean up oceans. B) A vaccine. C) Using a car for transportation. D) Cloning of organs. Show Answer Correct Answer: C) Using a car for transportation. 11. Plant cells are bombarded with high velocity microparticles of gold or Tungsten coated with DNA in a method known as A) Microinjection. B) Biolistics. C) Heat shock. D) None of the above. Show Answer Correct Answer: B) Biolistics. 12. How do restriction enzymes work? A) They inspect the length of DNA, find the recognition sequence, and add methyl groups to the DNA. B) They inspect the length of DNA, find the recognition sequence, and cut the DNA at specific points. C) They inspect the length of DNA, find the recognition sequence, and join the DNA at specific points. D) They inspect the length of DNA, find the recognition sequence, and replicate the DNA at specific points. Show Answer Correct Answer: B) They inspect the length of DNA, find the recognition sequence, and cut the DNA at specific points. 13. Blood plasma is directly used for A) Tissue culture. B) Tissue degeneration. C) Tissue regeneration. D) Tissue grafting. Show Answer Correct Answer: A) Tissue culture. 14. Which positive ways has Biotechnology impacted our environment? A) Reduced Pesticides use. B) Improved color and taste of vegetables. C) Improved our waterways. D) All of the above. Show Answer Correct Answer: D) All of the above. 15. Which of the following is a potential environmental benefit of biotechnology? A) Increased use of chemical fertilizers. B) Development of drought-resistant crops. C) Higher energy consumption. D) Increased soil erosion. Show Answer Correct Answer: B) Development of drought-resistant crops. 16. GAATTC IS RECOGNITION site for restriction endonuclease A) Bam I. B) EcoR I. C) Hae III. D) Hind III. Show Answer Correct Answer: B) EcoR I. 17. What are gene probes made of? A) Double-stranded DNA or RNA segments. B) Single-stranded DNA or RNA segments. C) Proteins. D) Lipids. Show Answer Correct Answer: B) Single-stranded DNA or RNA segments. 18. The process of separation and purification of expressed protein before marketing is called A) Post-production processing. B) Bio-processing. C) Downstream processing. D) Upstream processing. Show Answer Correct Answer: C) Downstream processing. 19. What is a common application of biotechnology in medicine? A) Developing antibiotics. B) Creating genetically modified crops. C) Producing biofuels. D) Enhancing computer algorithms. Show Answer Correct Answer: A) Developing antibiotics. 20. Which of the following can NOT be cloned? A) A Tree. B) A Squirrel. C) A Strawberry. D) A Pencil. Show Answer Correct Answer: D) A Pencil. 21. What cluster matches the following description?Planning, managing, and providing therapeutic services, diagnostic services, health informatics, support services, and biotechnology research and development. A) Health Science. B) Human Services. C) Hospitality & Tourism. D) None of the above. Show Answer Correct Answer: A) Health Science. 22. ..... are produced when DNA from another species is inserted into the genome of an organism, which then begins to produce the protein encoded on the recombinant DNA. A) Vectors. B) Gene Guns. C) Plasmids. D) Transgenic microbes. Show Answer Correct Answer: D) Transgenic microbes. 23. Artificial selection, genetic engineering, and cloning are examples of biotechnology. Which phrase best defines biotechnology? A) The application of living things and biological processes. B) The application of living things and biological processes. C) The process of creating a genetically identical organism, cell, or piece of genetic material. D) The use of computer and other electronic devices in the field of biology . Show Answer Correct Answer: A) The application of living things and biological processes. 24. Who discovered recombinant DNA technology A) Hargobind Khorana. B) James D. Whatson. C) S. Cohen and H. Boyer. D) Sutton and Avery. Show Answer Correct Answer: C) S. Cohen and H. Boyer. 25. Which of the following describes why some bands are darker in a gel electrophoresis? A) This is a location where there is a secondary well in the gel. B) There are large amounts of fragments the same size. C) The DNA at that band absorbed more dye since it is more positively charged. D) This is an error in the gel electrophoresis caused by a clogged pore in the gel. Show Answer Correct Answer: B) There are large amounts of fragments the same size. 26. T6-What type of macromolecule are restriction enzymes? A) Lipid. B) Nucleic acid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 27. What process was used in prehistoric times to make cheese and wine? A) Bioremediation. B) Fermentation. C) Lactation. D) Composting. Show Answer Correct Answer: B) Fermentation. 28. Biotechnology Research and Development includes all of the following, except ..... A) Transport Technician. B) Epidemiologist. C) Geneticist. D) Biomedical Chemist. Show Answer Correct Answer: A) Transport Technician. 29. What beneficial impact could genetically engineered crops have on society? A) They increase genetic variation in crops. B) They could create more efficient production, as crops could be altered to need no light. C) They decrease food allergies from crops. D) They could create a more stable food supply, as crops could be altered to resist droughts. Show Answer Correct Answer: D) They could create a more stable food supply, as crops could be altered to resist droughts. 30. Which of the following means of genetic engineering would have the greatest impact on world hunger? A) Inserting human DNA into bacterial DNA for insulin production. B) Manipulating DNA in trees to require less water. C) Modifying genes to achieve a desirable phenotype. D) Engineering crops for greater nutritional content. Show Answer Correct Answer: D) Engineering crops for greater nutritional content. 31. Which organism has the highest number of vectors? A) Fungi. B) E.coli. C) Yeast. D) Mammalian cells. Show Answer Correct Answer: B) E.coli. 32. True or False:Gel Electrophoresis allow us to analyze physical characteristics? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 33. What type of macromolecule are restriction enzymes? A) Lipid. B) Nucleic acid. C) Carbohydrate. D) Protein. Show Answer Correct Answer: D) Protein. 34. DNA that is derived from the DNA of 2 or more different species is called A) Chloroplast DNA. B) Mitochondrial DNA. C) Recombinant DNA. D) None of these. Show Answer Correct Answer: C) Recombinant DNA. 35. A selectable marker is used to: A) Mark a gene on a chromosome for isolation using restriction enzyme. B) Help in eliminating the non-transformants, so that the transformants can be regenerated. C) Select a suitable vector for transformation in a specific crop. D) Identify the gene for a desired trait in an alien organism. Show Answer Correct Answer: B) Help in eliminating the non-transformants, so that the transformants can be regenerated. 36. The word part, or prefix, bio refers to A) Technical Devices. B) People. C) Living things. D) Useful Items. Show Answer Correct Answer: C) Living things. 37. The sequence that controls the copy number of the linked DNA in the vector, is termed A) Recognition site. B) Palindromic sequence. C) Ori site. D) Selectable marker. Show Answer Correct Answer: C) Ori site. 38. The prefix, bio refers to A) Technical Devices. B) Useful Items. C) Living things. D) People. Show Answer Correct Answer: C) Living things. 39. Rice does not provide enough of certain vitamins. How could biotechnology be used to change this? A) Using a high nitrogen fertilzer. B) Using herbicide to get rid of weeds. C) Genetic modification of rice plants that are pest resistant and to produce vitamins they cannot make without biotechnology. D) Using pesticide to get rid of pests that can harm the crop. Show Answer Correct Answer: C) Genetic modification of rice plants that are pest resistant and to produce vitamins they cannot make without biotechnology. 40. Flavr Savr tomato was developed for: A) Drought resistance. B) Pest resistance. C) Delayed ripening. D) High yield. Show Answer Correct Answer: C) Delayed ripening. 41. In PCR, it is ..... that creates single-stranded template molecules A) Heat. B) High salt concentration. C) Exonuclease. D) DNA polymerase. Show Answer Correct Answer: A) Heat. 42. The enzyme DNA polymerase used in PCR reaction is isolated from which one of the following bacteria A) Thermus aquaticus. B) Plasmodium vivax. C) Both. D) A) None. Show Answer Correct Answer: A) Thermus aquaticus. 43. In which field would a student most likely pursue a career after obtaining a degree in biotechnology? A) Astronomy. B) Civil engineering. C) Pharmaceuticals. D) Geology. Show Answer Correct Answer: C) Pharmaceuticals. 44. What role does DNA play in plant biotechnology? A) It is the blueprint for genetic modification. B) It is used for photosynthesis. C) It is the primary energy source for plants. D) It has no significant role. Show Answer Correct Answer: A) It is the blueprint for genetic modification. 45. When an organism has two alleles at a particular locus that are different, the organism is called A) Heterozygous. B) Purebred. C) Dominant. D) Recessive. Show Answer Correct Answer: A) Heterozygous. 46. Perhatikan daftar Algae berikut:1. Euglena sp2. Rhizobium sp3. Chlorella sp4. Spirulina sp, Algae yang menjadi sumber makanan kelompok protein sel tunggal (PTS) adalah ..... A) 3 dan 4. B) 2 dan 4. C) 1 dan 3. D) 1 dan 2. Show Answer Correct Answer: A) 3 dan 4. 47. What is the function of free DNA nucleotides in PCR? A) To denature DNA. B) To bind to primers. C) To act as a template. D) To assemble new DNA copies. Show Answer Correct Answer: D) To assemble new DNA copies. 48. What is a plasmid? A) A protein that bacteria produce. B) A tool used to cut DNA. C) An extra set of genes in bacteria, often in a circular shape. D) A type of virus. Show Answer Correct Answer: C) An extra set of genes in bacteria, often in a circular shape. 49. Rising of dough Is due to A) Production of CO2. B) Hydrolysis of wheat flour starch into sugars. C) Multiplication of yeast. D) Emulsification. Show Answer Correct Answer: A) Production of CO2. 50. What does a Toxicologist do? A) Learn about toxins at the molecular level. B) Perform tests on blood samples. C) Specialize in how diseases are transmitted through family relationships. D) Use engineering principles to solve problems in surgery and medicine. Show Answer Correct Answer: A) Learn about toxins at the molecular level. 51. Everyone has a ..... is unique to the indivi A) DNA fingerprint. B) Personality. C) Larger fragment. D) None of the above. Show Answer Correct Answer: A) DNA fingerprint. 52. The DNA extraction buffer contains ..... A) High salt concentration and optimal pH. B) Low salt concentration and acidic pH. C) Low salt concentration and high pH. D) Low salt concentration and optimal pH. Show Answer Correct Answer: C) Low salt concentration and high pH. 53. Which of these is an advantage of producing human insulin using human genes inserted into bacteria A) The insulin could be from different species. B) Large amounts of insulin are produced quickly. C) Irregular supply. D) Depends on donations from other humans. Show Answer Correct Answer: B) Large amounts of insulin are produced quickly. 54. Biolistic is suitable for A) Constructing recombinant DNA by joining with vectors. B) Disarming pathogen vectors. C) DNA fingerprinting. D) Transformation of plant cell. Show Answer Correct Answer: D) Transformation of plant cell. 55. ..... is the old term for the study of the processes of fermentation in yeast and bacteria in the production of foods and beverages A) Zymotechnolgy. B) Biotechnology. C) Enzymology. D) Immunology. Show Answer Correct Answer: A) Zymotechnolgy. 56. Which of the following is a real-world application of biotechnology in agriculture? A) Breeding livestock for better traits. B) Designing solar-powered tractors. C) Creating synthetic fertilizers. D) Developing drought-resistant crops. Show Answer Correct Answer: D) Developing drought-resistant crops. 57. What technique is used for separating DNA fragments? A) Transformation. B) Gel electrophoresis. C) Chromatography. D) Transduction. Show Answer Correct Answer: B) Gel electrophoresis. 58. The first recombinant DNA was formed by joining DNA of lambda phage with that of ..... A) SV40 virus. B) Human mitochondrial DNA. C) Adenovirus. D) E. coli plasmid. Show Answer Correct Answer: A) SV40 virus. 59. In biotechnology, what is the purpose of using a plasmid in genetic engineering? A) To serve as a vector for gene insertion. B) To act as a catalyst in chemical reactions. C) To provide energy for cellular processes. D) To enhance the flavor of genetically modified foods. Show Answer Correct Answer: A) To serve as a vector for gene insertion. 60. BIOTEKNOLOGI terdiri dari 3 kata yaitu "BIO", "TEKNO", dan "LOGI", kata yang bermakna bahwa BIOTEKNOLOGI melibatkan makhluk hidup atau organisme dalam prosesnya adalah ..... A) TEKNO. B) BIO. C) MODERN. D) LOGI. Show Answer Correct Answer: B) BIO. ← 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 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