This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which bacterium naturally transfers T-DNA into plants? A) Bacillus thuringiensis q. B) Ecoli. C) Agrobacterium tumifaciens. D) Rhizobium. Show Answer Correct Answer: C) Agrobacterium tumifaciens. 2. Which of the following is true about Biomedical Chemists. A) Do not perform scientific research. B) Determine how emergencies are responded to. C) Apply chemical principles to study human diseases. D) Analyze evidence in criminal investigations. Show Answer Correct Answer: C) Apply chemical principles to study human diseases. 3. Biolistic gun is suitable for ..... A) DNA finger printing. B) Transformation of plant cells. C) Disarming pathogen vectors. D) Constructing recombinant DNA. Show Answer Correct Answer: B) Transformation of plant cells. 4. What is the role of ligase in biotechnology? A) Ligase is an enzyme that joins DNA fragments together, crucial for the formation of recombinant DNA. B) Ligase is responsible for unwinding DNA strands during replication. C) Ligase acts as a catalyst for the synthesis of RNA from DNA. D) Ligase is involved in the degradation of DNA fragments. Show Answer Correct Answer: A) Ligase is an enzyme that joins DNA fragments together, crucial for the formation of recombinant DNA. 5. Which branch of science allows us to alter the DNA of a tomato so it will not rot fast? A) Geology. B) Biotechnology. C) Anatomy. D) Biology. Show Answer Correct Answer: B) Biotechnology. 6. ..... tissue is present in nose, ear, larynx, trachea A) Striated tissue. B) Artery. C) Bone. D) Cartilage. Show Answer Correct Answer: D) Cartilage. 7. The process of making multiple copies of DNA in vitro is called ..... A) PCR (Polymerase Chain Reaction). B) Cloning vector preparation. C) Gel electrophoresis. D) DNA sequencing. Show Answer Correct Answer: A) PCR (Polymerase Chain Reaction). 8. Golden rice is rich in: A) Zinc. B) Vitamin A. C) Iron. D) Vitamin C. Show Answer Correct Answer: B) Vitamin A. 9. Susan has a highschool diploma and experience, she could interview for which job? A) Biophysicist. B) Toxicologist. C) Laboratory assistant. D) Veterinary technician. Show Answer Correct Answer: C) Laboratory assistant. 10. Basic principle for developing transgenic plants and animals is to introduce the gene of interest into nucleus of ..... A) Somatic Cell. B) Germ Cell. C) Vegetative Cell. D) Body Cell. Show Answer Correct Answer: B) Germ Cell. 11. Which is a positive result of the use of biotechnology in agriculture? A) Increased use of preservatives. B) Increased use of pesticides. C) Increased yield. D) . increased cost. Show Answer Correct Answer: C) Increased yield. 12. Which is most important when investigating ethical issues in biotechnology? A) Cost of the technology. B) Public opinion of the technology. C) Benefits of the technology outweighing the harm. D) Advantage of the technology. Show Answer Correct Answer: C) Benefits of the technology outweighing the harm. 13. What is bioremediation? A) Using living organisms to remove pollution from the environment. B) Using transgenic crops to improve nutrition. C) Trying to reverse the effects of a super hero mutation. D) Using microbes to aid in medication production. Show Answer Correct Answer: A) Using living organisms to remove pollution from the environment. 14. Multiple Choice Questions (1-25)-Agarose gel electrophoresis separates DNA fragments based on: A) Shape. B) Charge. C) Size. D) Density. Show Answer Correct Answer: C) Size. 15. Assertion (A):Taq polymerase is used in PCR. Reason (R):It is stable at high temperature. 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) Both are false. Show Answer Correct Answer: A) Both A and R are true and R is the correct explanation of A. 16. What information must be known before a gene can be inserted into a bacteria? A) Protein sequence of the gene. B) DNA sequence of the gene. C) MRNA sequence of the gene. D) TRNA sequence of the gene. Show Answer Correct Answer: B) DNA sequence of the gene. 17. RNA interference is useful for . A) Micropropagation. B) Cell proliferation. C) Cell differentiation. D) Cell defense. Show Answer Correct Answer: D) Cell defense. 18. Which of these is NOT a use for DNA Fingerprinting? A) Identifying the person whose DNA was left at a crime scene. B) Finding the likelihood of inheriting a genetic disorder. C) Determining the father of a child. D) Figuring out which species are more closely related. Show Answer Correct Answer: B) Finding the likelihood of inheriting a genetic disorder. 19. Who among the following was awarded the Nobel Prize for the development of PCR technique? A) Kary Mullis. B) Hargovind Khorana. C) Herbert Boyer. D) Arthur Kornberg. Show Answer Correct Answer: A) Kary Mullis. 20. Multiple Choice Questions (1-25)-Which of the following is not a step in recombinant DNA technology? A) Ligation. B) Photosynthesis. C) Isolation of DNA. D) Transformation. Show Answer Correct Answer: B) Photosynthesis. 21. An enzyme catalyzing the removal of nucleotides from the ends of DNA is A) Exonuclease. B) Hind II. C) Endonuclease. D) DNA ligase. Show Answer Correct Answer: A) Exonuclease. 22. During the annealing step of PCR, what attaches to the target sequence? A) DNA polymerase. B) Short DNA primers. C) RNA primers. D) Nucleotides. Show Answer Correct Answer: B) Short DNA primers. 23. In plant biotechnology, what is the role of Agrobacterium tumefaciens? A) It is used for plant breeding. B) It acts as a vector for gene transfer. C) It enhances plant growth. D) It causes plant diseases. Show Answer Correct Answer: B) It acts as a vector for gene transfer. 24. A process that disrupts or turns off a gene is called ..... A) Genetically modified organism. B) Gene therapy. C) Recombinant DNA. D) Gene knockout. Show Answer Correct Answer: D) Gene knockout. 25. Insulin was first produced by recombinant DNA technology using: A) E. coli. B) Yeast. C) Bacteria and fungi. D) Virus. Show Answer Correct Answer: A) E. coli. 26. Removing pollution from soil and water using living organisms. A) Bioremediation. B) Economy. C) Agriculture. D) Biotechnology. Show Answer Correct Answer: A) Bioremediation. 27. DNA produced by combining DNA from two different organisms is known as A) A hybrid. B) A mutant. C) Recombinant DNA. D) A polyploidy. Show Answer Correct Answer: C) Recombinant DNA. 28. Multiple Choice Questions (1-25)-Blunt ends are produced by: A) HindIII. B) SmaI. C) BamHI. D) EcoRI. Show Answer Correct Answer: B) SmaI. 29. Which contagion is correctly matched to the disease it causes? A) Rabies-fungus. B) Chicken pox-bacteria. C) Polio-virus. D) Influenza-parasite. Show Answer Correct Answer: C) Polio-virus. 30. What is the primary purpose of using restriction enzymes in biotechnology? A) To sequence DNA. B) To synthesize proteins. C) To amplify DNA sequences. D) To cut DNA at specific sequences. Show Answer Correct Answer: D) To cut DNA at specific sequences. 31. Bt maize is a genetically modified crop that can be grown without the use of which of the following? A) Chemical fertilisers. B) Chemical pesticides. C) Chemical herbicides. D) Soil. Show Answer Correct Answer: B) Chemical pesticides. 32. What is genetically engineered into crop plants for better yield? A) Higher sugar content. B) Faster growth rate. C) Resistance to herbicides. D) Increased water retention. Show Answer Correct Answer: C) Resistance to herbicides. 33. Which of the following can be pathogens? A) Bacteria only. B) Viruses only. C) Bacteria and viruses. D) Neither bacteria or viruses. Show Answer Correct Answer: C) Bacteria and viruses. 34. How can biotechnology help farmers overcome sudden changes in the global climate? A) By changing the types of soil in which crops are planted. B) By only planting crops in the winter. C) By rotating crops within the same field. D) By developing crops that are resistant to adverse weather. Show Answer Correct Answer: D) By developing crops that are resistant to adverse weather. 35. What prevents scientists from cloning humans despite the fact that other mammals such as sheep have been cloned? A) Cloning humans would take too much time to reproduce. B) The technology to clone humans has not been explored. C) There are many ethical problems involved in cloning humans. D) Human reproduction is very different from that of other mammals. Show Answer Correct Answer: C) There are many ethical problems involved in cloning humans. 36. RNA interference (RNAi) involves: A) DNA replication. B) Transcription activation. C) MRNA degradation. D) Protein folding. Show Answer Correct Answer: C) MRNA degradation. 37. Which of the following terms describes the process of the uptake of recombinant plasmids into bacteria cells? A) RDNA plasmid. B) RDNA technology. C) Transformation. D) Transferrence. Show Answer Correct Answer: C) Transformation. 38. How is selective breeding different from genetic engineering? A) In selective breeding, scientists inserts a gene from another organism. B) In selective breeding, man clones an organism. C) In selective breeding, man chooses which animals or plants will mate with each other. D) None of the above. Show Answer Correct Answer: C) In selective breeding, man chooses which animals or plants will mate with each other. 39. "transgenic" refers to an animal that: A) Has DNA from another organism spliced into its genome. B) Has undergone DNA modification. C) Has unique genes for its species. D) None of the above. Show Answer Correct Answer: A) Has DNA from another organism spliced into its genome. 40. What research initiated by North Carolina in the field of biotechnology has helped the state economically? A) Developing flu vaccines from tobacco plant leaves. B) Producing biofuel using plants like corn and soybeans. C) Creating replacement organs and tissues using stem cells. D) Developing antibodies that will help cure bacterial infections. Show Answer Correct Answer: B) Producing biofuel using plants like corn and soybeans. 41. This scientist has to make sure the new drugs that are put on the market are safe for patients. A) Product safety scientist. B) Quality control officer. C) Product safety technician. D) Clinical trial monitor. Show Answer Correct Answer: A) Product safety scientist. 42. Organism that is genetically engineered by inserting a gene from another organism A) Genetically modified organism. B) Transgenic organism. C) Recombinant DNA. D) Human genome project. Show Answer Correct Answer: B) Transgenic organism. 43. What is the purpose of gel electrophoresis? A) To separate biomolecules based on size and charge. B) To amplify DNA sequences. C) To enhance the stability of proteins. D) To increase the temperature of samples. Show Answer Correct Answer: A) To separate biomolecules based on size and charge. 44. Which of the following careers would a student studying biotechnology most likely pursue? A) Agricultural research. B) Astronomy. C) Geology. D) Electrical Engineering. Show Answer Correct Answer: A) Agricultural research. 45. Which is the best example of a transgenic organism? A) A human insulin-producing bacterial cell. B) A newborn baby. C) A cloned sheep. D) A virus. Show Answer Correct Answer: A) A human insulin-producing bacterial cell. 46. Why are thermophilic bacteria used in the biomining of gold? A) They work in California. B) They work without oxygen. C) They are inexpensive to produce. D) They work in high temperatures. Show Answer Correct Answer: D) They work in high temperatures. 47. The science or practice of farming. A) Crop Yield. B) Bioremediation. C) GMO. D) Agriculture. Show Answer Correct Answer: D) Agriculture. 48. Which part of the tobacco plant infected by Meloidegyne A) Flower. B) Root. C) Leaf. D) Stem. Show Answer Correct Answer: B) Root. 49. Which type of bioengineered foods might provide customers with a healthier diet? A) Foods higher in simple starches. B) Foods with large amounts of preservatives. C) Foods that do not need to be refrigerated. D) Foods lower in saturated fats. Show Answer Correct Answer: D) Foods lower in saturated fats. 50. Gene therapy is beneficial to people who suffer from A) A cold. B) The flu. C) Genetic disorders. D) Strep throat. Show Answer Correct Answer: C) Genetic disorders. 51. Tigers and households cats are members of the same family; however, their sizes are vastly different. What is the cause of this difference? A) Genetics. B) Biochemical makeup. C) Habitat size. D) Behavioral makeup. Show Answer Correct Answer: A) Genetics. 52. Which of the following is an example of a GMO A) Bt Corn. B) Black Lab Puppies. C) Dolly the sheep. D) None of the above. Show Answer Correct Answer: A) Bt Corn. 53. Which of the following is a protein that acts as DNA scissors? A) Ligase. B) Restriction enzyme. C) Plasmid. D) Protein expression. Show Answer Correct Answer: B) Restriction enzyme. 54. Which of the following describes how we could use genetic modification? A) It allows for a large amount of medications to be produced. B) It helps with the pollution in Earth's oceans. C) It can help us alter genes in crops to become insect-resistant. D) It can increase the amount of non-renewable resources. Show Answer Correct Answer: C) It can help us alter genes in crops to become insect-resistant. 55. Which of the following is not a benefit of transgenic animals? A) Testing the safety of vaccines. B) Early detection of diseases. C) To produce useful biological products. D) Investigation of new treatments for diseases. Show Answer Correct Answer: B) Early detection of diseases. 56. Who among the following coined the term Biotechnology? A) Karl Ereky. B) James Clarke. C) Paul Terasaky. D) Clarke and Sommer. Show Answer Correct Answer: A) Karl Ereky. 57. Genetic engineering has directly increased productivity in which U.S. industry? A) Agriculture. B) Automobile. C) Media. D) None of these. Show Answer Correct Answer: A) Agriculture. 58. A group of genetically identical cells or organisms. A) Gene Therapy. B) Donor. C) Clone. D) In-breed. Show Answer Correct Answer: C) Clone. 59. 13) What would increase the money made by farmers in North Carolina through biotechnology? A) Tomatoes that are different in color. B) Tomatoes that are smaller. C) Tomatoes that taste the same. D) Tomatoes that are resistant to disease. Show Answer Correct Answer: D) Tomatoes that are resistant to disease. 60. In biotechnology, which process involves inserting a gene from one organism into another to produce a desired trait? A) Gene Editing. B) Gene Cloning. C) Gene Therapy. D) Gene Splicing. Show Answer Correct Answer: D) Gene Splicing. ← 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 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