This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which career field is most closely related to biotechnology? A) Journalism. B) Medicine. C) Meterology. D) Political science. Show Answer Correct Answer: B) Medicine. 2. What is the purpose of gene therapy? A) To treat or prevent diseases by inserting, altering, or removing genes within an individual's cells. B) To enhance physical performance in athletes. C) To create genetically modified organisms for agriculture. D) To replace all damaged cells in the body with new ones. Show Answer Correct Answer: A) To treat or prevent diseases by inserting, altering, or removing genes within an individual's cells. 3. What do we call the science of using the genetic makeup living things to create products? A) Biotechnology. B) Pharmacology. C) Genealogy. D) Neurology. Show Answer Correct Answer: A) Biotechnology. 4. A polymer used as a gel material in vertical electrophoresis used to separate smaller molecules, like proteins and very small pieces of DNA or RNA A) Site-specific mutagenesis. B) Polyacrylamide. C) T.A.E. D) Polymer. Show Answer Correct Answer: B) Polyacrylamide. 5. How can biotechnology affect agriculture on a single plot of land? A) The land could produce more food than before. B) The land could produce several harvests at once. C) The land could require more fertilizer for crops to grow. D) The land could require moderate temperatures for crops to grow. Show Answer Correct Answer: A) The land could produce more food than before. 6. The technique PCR was discovered by the scientist ..... in 1985 A) Georges & Cesar. B) Alac Jeffry. C) E. M. Southern. D) Kary Mullis. Show Answer Correct Answer: D) Kary Mullis. 7. Which pathogen is non-living? A) Virus. B) Bacteria. C) Fungi. D) Parasite/Protist. E) They are all alive. Show Answer Correct Answer: A) Virus. 8. Which career in biotechnology requires a minimum of a bachelor s degree? A) Biological technician. B) Industry secretary. C) Technical writer. D) Laboratory assistant. Show Answer Correct Answer: A) Biological technician. 9. Which of the following chemicals is used in vectorless gene transfer? A) Ethidium sulphide. B) Polyethylene glycol. C) Sodium bromide. D) Ethidium bromide. Show Answer Correct Answer: B) Polyethylene glycol. 10. Another name for GMO (Genetically Modified Organsim) is ..... A) Transplanted. B) Plasmid. C) Transducted. D) Transgenic. Show Answer Correct Answer: D) Transgenic. 11. Which is a genetic engineering advancement directly related to a career in biotechnology? A) Repairing historical sites with quality materials. B) Improving solar energy collection. C) Transporting textiles at higher rates. D) Creating crop foods that resist insect pests. Show Answer Correct Answer: D) Creating crop foods that resist insect pests. 12. Continue the statement:Cell cultures are NOT used for A) Behavioral studies. B) Generating antibodies. C) Making enzimes. D) Producing vaccines. Show Answer Correct Answer: A) Behavioral studies. 13. How are scientists able to produce a type of corn that will repel insects? A) By altering the temperature of soil so the insects will die. B) By changing the genetics of the corn plants. C) By not spraying the corn plants. D) By soaking corn seeds in insect spray. Show Answer Correct Answer: B) By changing the genetics of the corn plants. 14. Scientists must carefully weigh the risks and benefits of of biotechnology. Which of these is a risk that scientists must consider when genetically engineering a plant? A) What kind of nutrients the plant will need. B) Whether the plant will grow well in different types of soil. C) Whether the plant can be crossbred with other types of plants. D) Whether the plant would cause allergic reactions to humans. Show Answer Correct Answer: D) Whether the plant would cause allergic reactions to humans. 15. Many organisms that are bred for specific characteristics are inbred. What is the problem with inbreeding? A) Increases genetic variation. B) Creates transgenic organisms. C) Decreases genetic variation & leads to mutations. D) Creates hybrids. Show Answer Correct Answer: C) Decreases genetic variation & leads to mutations. 16. PCR can amplify RNA directly. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. Humans with genetic diseases can have a gene inserted into their body using a virus. This is called: A) Gene therapy. B) Cloning. C) DNA fingerprinting. D) None of the above. Show Answer Correct Answer: A) Gene therapy. 18. What does a Geneticist do? A) Repair medical equipment. B) Specializes in how diseases are transmitted through family relationships. C) Protect the safety and health of people in the workforce. D) None of the above. Show Answer Correct Answer: B) Specializes in how diseases are transmitted through family relationships. 19. Any protein encoding gene is expressed in a heterologous host is called as A) Recombinant polysaccharide. B) Recombinant DNA. C) Recombinant Protein. D) Recombinant RNA. Show Answer Correct Answer: B) Recombinant DNA. 20. The cloning process creates a gene or organism with the identical ..... as the original. A) Intelligence level. B) Physical appearance. C) Personality. D) Genetic material. Show Answer Correct Answer: D) Genetic material. 21. Plasmids are used as vectors in genetic engineering because of their ..... A) Ability to cause infection in host. B) Ability to carry foreign genes. C) Resistance to restriction enzymes. D) Resistance to antibiotics. Show Answer Correct Answer: B) Ability to carry foreign genes. 22. A young and unspecialized cells that can develop into different types of human body cells A) Stem cells. B) Body cells. C) Small cells. D) Large cells. Show Answer Correct Answer: A) Stem cells. 23. How many polypeptides are found in human insulin? A) 2. B) 1. C) 4. D) 5. Show Answer Correct Answer: A) 2. 24. ..... DNA is created by using the ..... from a bacteria and splicing a section of DNA into it. A) Cloning, ribosome. B) Transcription, translation. C) Recombinant, plasmid. D) Cumulus, mitochondria. Show Answer Correct Answer: C) Recombinant, plasmid. 25. Why do we as humans use selective breeding? A) Create clones. B) Create mutants. C) To create organisms with desired traits. D) None of the above. Show Answer Correct Answer: C) To create organisms with desired traits. 26. True or False:Gel electrophoresis allow scientist to compare DNA of different individuals. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 27. Why are Restriction enzymes called molecular scissors?? A) They are used to cut the strands of RNA at specific location. B) They are used to cut the strands of DNA at specific location. C) They are used to join the strands of DNA at specific location. D) They are used to replicate the strands of DNA at specific location. Show Answer Correct Answer: B) They are used to cut the strands of DNA at specific location. 28. Who constructed the first recombinant DNA? A) Alec Jeffreys. B) Rosalind Franklin and Maurice Wilkins. C) James Watson and Francis Crick. D) Stanley Cohen and Herbert Boyer. Show Answer Correct Answer: D) Stanley Cohen and Herbert Boyer. 29. Which agricultural benefit can biotechnology provide? A) Developing plants that will not die. B) Developing plants with inheritable traits unrelated to the genetic material they contain. C) Developing plants that are less sensitive to variations in environmental temperatures. D) Developing plants that are less dependent on the sun for energy. Show Answer Correct Answer: C) Developing plants that are less sensitive to variations in environmental temperatures. 30. In order for there to be DNA fragments, ..... must be used to help create the A) Virtual scissors. B) DNA helicase. C) Restriction enzymes. D) Gel electrophoresis. Show Answer Correct Answer: C) Restriction enzymes. 31. The Human Genome Project has helped with which of the following? A) Developing customized treatments for people with genetic disorders. B) Diagnosing and treating diseases. C) Better understanding of human genetic diseases. D) Mapping where specific genes are located within the human genome. E) All of the above. Show Answer Correct Answer: E) All of the above. 32. Choose the correct pair from the following ..... A) Nucleases-Separate the two strands of DNA. B) Exonucleases-Make cuts at specific positions within DNA. C) Ligases-Join the two DNA molecules. D) Polymerases-Break the DNA into fragments. Show Answer Correct Answer: C) Ligases-Join the two DNA molecules. 33. Messing with DNA by doing things like putting genes from one organism into another is ..... A) Gene modification. B) Gene therapy. C) Selective breeding. D) Animal husbandry. Show Answer Correct Answer: A) Gene modification. 34. Which would a person who pursues a career in bioinformatics study? A) Ways DNA stores information. B) Ways of cross-breeding plants. C) Ways of cross-breeding animals. D) Ways of storing and retrieving biological data. Show Answer Correct Answer: D) Ways of storing and retrieving biological data. 35. The structure of DNA is very important to its functioning. Why is this true? A) The sequence of nucleotide bases codes for an organism's specific traits. B) The sequence of amino acid bases codes for an organism's specific traits. C) The double helix determines the type of organism it will be. D) The double helix allows organisms to adapt. Show Answer Correct Answer: A) The sequence of nucleotide bases codes for an organism's specific traits. 36. Region which is responsible for tumour induction in Ti plasmids is ..... A) Ori. B) TDNA. C) Vir. D) None of these. Show Answer Correct Answer: B) TDNA. 37. To help meet the world's demand for food, which biotechnological process is most likely to be used by agricultural industries? A) Crop diversification. B) Use of transgenic crops. C) Crop rotation. D) Spraying of organic herbicide. Show Answer Correct Answer: B) Use of transgenic crops. 38. Identify the plasmid A) EcoRI. B) PBR322. C) AIUI. D) Hind II. Show Answer Correct Answer: B) PBR322. 39. To change something A) Extract. B) Modify. C) GMO. D) Gene. Show Answer Correct Answer: B) Modify. 40. What is the first step in genetic engineering of plants? A) Identifying a trait of interest. B) Selling the plant. C) Watering the plant. D) Testing the plant. Show Answer Correct Answer: A) Identifying a trait of interest. 41. If a lake has excess levels of phosphates and nitrates in its water, what will most likely result? A) The turbidity levels of the lake will decrease. B) The growth of algae in the lake will increase. C) The temperature of the lake water will decrease. D) The dissolved-oxygen levels in the lake will increase. Show Answer Correct Answer: B) The growth of algae in the lake will increase. 42. Small circular extrachromosomal DNA in bacterial cell is called A) Genome. B) Nucleoid. C) Plasmid. D) Chromatin. Show Answer Correct Answer: C) Plasmid. 43. Transgenic sheep "Rosie" produced milk containing: A) Vitamin A. B) Alpha-1-antitrypsin. C) Insulin. D) Lactase. Show Answer Correct Answer: B) Alpha-1-antitrypsin. 44. Gel electrophoresis enables scientists to A) Insert DNA in cells. B) Combine DNA fragments. C) Count the genes in DNA. D) Separate DNA fragments. Show Answer Correct Answer: D) Separate DNA fragments. 45. Name the enzyme which is used for isolating the DNA from bacterial cells A) Cellulase. B) Chitinase. C) Lysozyme. D) None of the above. Show Answer Correct Answer: C) Lysozyme. 46. Which is a step in the process of producing transgenic bacteria? A) A plasmid is used to replace a faulty gene in a human cell. B) A human gene is inserted into a bacterial plasmid. C) A chain of bacterial amino acids is inserted into human DNA. D) A mutation is produced in a bacterial cell. Show Answer Correct Answer: B) A human gene is inserted into a bacterial plasmid. 47. A sequence from where replication starts A) Selectable marker. B) Bacteriophage. C) Vector. D) Origin of replication. Show Answer Correct Answer: D) Origin of replication. 48. Which of the following conclusions was a result of Mendel's observations? A) Organisms that give rise to purebreds are genetically superior. B) Organisms that have intermediate features are self pollinating. C) Organisms inherit two copies of each gene, one from each parent. D) Organisms that self pollinate do not have "either-or" features. Show Answer Correct Answer: C) Organisms inherit two copies of each gene, one from each parent. 49. What do both types of electrophoresis separate? A) Molecules based on color. B) Molecules based on size and charge. C) Molecules based on temperature. D) Molecules based on density. Show Answer Correct Answer: B) Molecules based on size and charge. 50. What are genetically modified organisms (GMOs)? A) Organisms that have been bred for specific traits through traditional methods. B) Organisms whose genetic material has been altered using genetic engineering techniques. C) Organisms that are completely synthetic and do not exist in nature. D) Organisms that have been exposed to radiation to induce mutations. Show Answer Correct Answer: B) Organisms whose genetic material has been altered using genetic engineering techniques. 51. Cause of common cold and flu. A) Viruses. B) Bacteria. C) Reaction by the body to substances. D) None of the above. Show Answer Correct Answer: A) Viruses. 52. 'Flavr Savr' variety of tomato which remains fresh for a longer period than normal tomato variety A) Has high amount of enzyme polygalacturonase. B) Has reduced amount of enzyme polygalacturonase. C) Is a pest resistant variety. D) Is rich in vitamin A and prevents night blindness. '. Show Answer Correct Answer: B) Has reduced amount of enzyme polygalacturonase. 53. Which is an application of genetic engineering? A) Destroying all bacteria. B) Creating synthetic insulin. C) Producing cells from nonliving material. D) Preventing weeds from spreading to farmland. Show Answer Correct Answer: B) Creating synthetic insulin. 54. Which bacteria are known as natural genetic engineer of plants? A) Streptomyces sp. B) Bacillus sp. C) E.coli. D) Agrobacterium tumefaciens. Show Answer Correct Answer: D) Agrobacterium tumefaciens. 55. North Carolina has over 400 biotechnology companies. How would the economy most likely change if that number were reduced by half? A) The economy would suffer as funding for research decreases. B) The economy would improve when the government offers assistance. C) The economy would decline because of job loss. D) The economy would increase due to an increase in production. Show Answer Correct Answer: C) The economy would decline because of job loss. 56. What term describes an organism that has genetic material from another organism? A) Clone. B) Hybrid. C) Mutant. D) Transgenic. Show Answer Correct Answer: D) Transgenic. 57. What type of DNA fragment will move the farthest in a gel electrophoresis? A) Large. B) Small. C) Dense. D) Medium. Show Answer Correct Answer: B) Small. 58. Protein $\alpha$-1 antitrypsin is used to treat . A) Emphysema. B) Rheumatoid arthritis. C) Cancer. D) Alzheimer's disease. Show Answer Correct Answer: A) Emphysema. 59. Which of the following best describes the process of cloning in biotechnology? A) Creating a genetically identical copy of an organism. B) Mixing DNA from two different species. C) Altering the DNA sequence of an organism. D) Using bacteria to produce insulin. Show Answer Correct Answer: A) Creating a genetically identical copy of an organism. 60. Which best describes biotechnology? A) A field of science that has not impacted our lives. B) A slowly growing field of science. C) Technological application of living organisms to produce beneficial products. D) Technological application of nonliving organisms to produce beneficial products. Show Answer Correct Answer: C) Technological application of living organisms to produce beneficial products. ← 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 8Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books