This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 49 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 49 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A form of technology that uses living organisms, usually genes, to modify products, to make or modify plants and animals, or to develop other microorganisms for specific purposes. A) Bioremediation. B) Recombinant DNA. C) Biotechnology. D) Gene therapy. Show Answer Correct Answer: C) Biotechnology. 2. The "on/off" switch for an operon is called the A) Promoter. B) Enhancer. C) Operator. D) Gene. Show Answer Correct Answer: C) Operator. 3. What can plant biotechnology do for the environment? A) Increase pollution. B) Reduce biodiversity. C) Help in conserving biodiversity. D) Consume more energy. Show Answer Correct Answer: C) Help in conserving biodiversity. 4. How does biotechnology contribute to the production of insulin for diabetic patients? A) By using genetically modified bacteria to produce human insulin. B) By extracting insulin directly from human donors. C) By synthesizing insulin from plant extracts. D) By using chemical reactions to create synthetic insulin. Show Answer Correct Answer: A) By using genetically modified bacteria to produce human insulin. 5. In the context of biotechnology, what is the purpose of a polymerase chain reaction (PCR)? A) To amplify small segments of DNA. B) To sequence the entire genome. C) To create genetically modified organisms. D) To analyze protein structures. Show Answer Correct Answer: A) To amplify small segments of DNA. 6. Bt cotton has been developed for resistance to: A) Herbicides. B) Fungal infection. C) Insects. D) Drought. Show Answer Correct Answer: C) Insects. 7. The chemical used to make bacterial cells competent is ..... A) Calcium chloride. B) Sodium chloride. C) Magnesium sulfate. D) Ethanol. Show Answer Correct Answer: A) Calcium chloride. 8. Why are restriction enzymes also called molecular scissors? A) Because they replicate DNA. B) Because they join DNA at specific locations. C) Because they add methyl groups to DNA. D) Because they cut DNA at specific locations. Show Answer Correct Answer: D) Because they cut DNA at specific locations. 9. Problems with cloning are A) Creating too many embryos that are unneeded. B) Premature aging and a high failure rate. C) They have a tendency to overpopulate. D) None of the above. Show Answer Correct Answer: B) Premature aging and a high failure rate. 10. How are viruses different from bacteria? A) Viruses affect plants, while bacteria affect animals. B) Viruses are pathogenic, while bacteria are nonpathogenic. C) Viruses are treated with antibiotics, while bacteria are treated with vaccines. D) Viruses require a host organism, while bacteria live host free. Show Answer Correct Answer: D) Viruses require a host organism, while bacteria live host free. 11. What is the first step in the polymerase chain reaction (PCR) process? A) Annealing. B) Denaturing. C) Extension. D) Replication. Show Answer Correct Answer: B) Denaturing. 12. Restriction endonuclease always recognize sequences that are A) Random. B) Palindromic. C) Antiparallel. D) Non repetitive. Show Answer Correct Answer: B) Palindromic. 13. What is the genetic material for most organisms? A) Carbohydrate. B) Protein. C) RNA. D) DNA. Show Answer Correct Answer: D) DNA. 14. Golden rice is rich in iron. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. Which enzyme is used in the process of DNA replication? A) DNA polymerase. B) Ligase. C) Helicase. D) RNA polymerase. Show Answer Correct Answer: A) DNA polymerase. 16. Which of the following is a real-world application of plant biotechnology in agriculture? A) Developing drought-resistant crops. B) Increasing the height of trees. C) Changing the color of flowers. D) Producing larger fruits. Show Answer Correct Answer: A) Developing drought-resistant crops. 17. First company to start large scale insulin production A) Novartis. B) Johnson's and Johnson's. C) Pfizer. D) Eli Lilly. Show Answer Correct Answer: D) Eli Lilly. 18. Which of the following best describes "DNA Fingerprinting?" A) Means the same thing as "gel electrophoresis". B) Used to edit someone's genes. C) Used to move genes from one organism into another. D) Used to copy an organism's genome. Show Answer Correct Answer: A) Means the same thing as "gel electrophoresis". 19. In gel electrophoresis, separated DNA fragments can be visualized with the help of. A) Acetocarmine in UV radiation. B) Ethidium bromide in infrared radiation. C) Acetocarmine in bright blue light. D) Ethidium bromide in UV radiation. Show Answer Correct Answer: D) Ethidium bromide in UV radiation. 20. Which variety of rice was patented by a U.S. company even though the highest number of varieties of this rice are found in India? A) Sharbati Sonora. B) Co-667. C) Basmati. D) LermaRojo. Show Answer Correct Answer: C) Basmati. 21. Any change or mistake in DNA replication can cause a ..... A) Cancer cell. B) Virus. C) Disease. D) Mutation. Show Answer Correct Answer: D) Mutation. 22. Antibiotik merupakan salah satu komponen penting dalam dunia kedokteran. Mikroorganisme yang dapat menghasilkan antibiotik adalah ..... A) Saccharomyces cerevisae. B) Neurospora crasa. C) Monilia sitholphyla. D) Penicilium notatum. Show Answer Correct Answer: D) Penicilium notatum. 23. DNA ligase helps in joining DNA fragments. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. An organism's complete set of genes is called its ..... A) Genome. B) DNA. C) Chromosome. D) Chromatin. Show Answer Correct Answer: A) Genome. 25. What is the primary function of restriction enzymes? A) To synthesize RNA molecules. B) To repair damaged DNA strands. C) The primary function of restriction enzymes is to cut DNA at specific sequences. D) To replicate DNA sequences. Show Answer Correct Answer: C) The primary function of restriction enzymes is to cut DNA at specific sequences. ← PreviousNext →Related 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 8Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 9Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books