This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. How does a restriction enzyme work?? A) It inspects the length of RNA and binds to it. B) It inspects the length of DNA and replicates it at specific points. C) It inspects the length of DNA and adds methyl groups to it. D) It inspects the length of DNA, finds the recognition sequence, and cuts the DNA at specific points. Show Answer Correct Answer: D) It inspects the length of DNA, finds the recognition sequence, and cuts the DNA at specific points. 3. 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. 4. To help meet the world's demand for food, which biotechnological process is most likely to be used by agricultural industries? A) Crop rotation. B) Crop diversification. C) Use of transgenic crops. D) Spraying of organic herbicide. Show Answer Correct Answer: C) Use of transgenic crops. 5. Identify the plasmid A) EcoRI. B) PBR322. C) AIUI. D) Hind II. Show Answer Correct Answer: B) PBR322. 6. To change something A) Modify. B) Extract. C) Gene. D) GMO. Show Answer Correct Answer: A) Modify. 7. What is the first step in genetic engineering of plants? A) Testing the plant. B) Identifying a trait of interest. C) Selling the plant. D) Watering the plant. Show Answer Correct Answer: B) Identifying a trait of interest. 8. If a lake has excess levels of phosphates and nitrates in its water, what will most likely result? A) The temperature of the lake water will decrease. B) The turbidity levels of the lake will decrease. C) The dissolved-oxygen levels in the lake will increase. D) The growth of algae in the lake will increase. Show Answer Correct Answer: D) The growth of algae in the lake will increase. 9. Small circular extrachromosomal DNA in bacterial cell is called A) Genome. B) Plasmid. C) Chromatin. D) Nucleoid. Show Answer Correct Answer: B) Plasmid. 10. Transgenic sheep "Rosie" produced milk containing: A) Alpha-1-antitrypsin. B) Insulin. C) Vitamin A. D) Lactase. Show Answer Correct Answer: A) Alpha-1-antitrypsin. 11. Gel electrophoresis enables scientists to A) Separate DNA fragments. B) Combine DNA fragments. C) Count the genes in DNA. D) Insert DNA in cells. Show Answer Correct Answer: A) Separate DNA fragments. 12. 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. 13. 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 chain of bacterial amino acids is inserted into human DNA. C) A human gene is inserted into a bacterial plasmid. D) A mutation is produced in a bacterial cell. Show Answer Correct Answer: C) A human gene is inserted into a bacterial plasmid. 14. 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. 15. 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. 16. 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. 17. 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. 18. 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. 19. '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. 20. 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. 21. Which bacteria are known as natural genetic engineer of plants? A) Agrobacterium tumefaciens. B) E.coli. C) Bacillus sp. D) Streptomyces sp. Show Answer Correct Answer: A) Agrobacterium tumefaciens. 22. 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 decline because of job loss. B) The economy would suffer as funding for research decreases. C) The economy would increase due to an increase in production. D) The economy would improve when the government offers assistance. Show Answer Correct Answer: A) The economy would decline because of job loss. 23. What term describes an organism that has genetic material from another organism? A) Hybrid. B) Clone. C) Transgenic. D) Mutant. Show Answer Correct Answer: C) Transgenic. 24. 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. 25. Protein $\alpha$-1 antitrypsin is used to treat . A) Cancer. B) Rheumatoid arthritis. C) Alzheimer's disease. D) Emphysema. Show Answer Correct Answer: D) Emphysema. ← 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