This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 11 Biotechnology Principles And Processes – Quiz 39 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 11 Biotechnology Principles And Processes Quiz 39 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Agarose extracted from sea weeds finds use in A) PCR. B) Gel electrophoresis. C) Spectrophotometry. D) Tissue culture. Show Answer Correct Answer: B) Gel electrophoresis. 2. An application of using DNA technology to help environmental scientists would be ..... A) Use PCR to analyze DNA at a crime scene. B) Create a tobacco plant that glows in the dark. C) Clone the gene for human growth hormone to treat pituitary dwarfism. D) Make transgenic bacteria that can be used to clean up oil spills more quickly than do the natural bacteria. Show Answer Correct Answer: D) Make transgenic bacteria that can be used to clean up oil spills more quickly than do the natural bacteria. 3. What is the significance of using restriction enzymes in genetic engineering? A) They help in the replication of DNA. B) They are used to destroy harmful bacteria. C) They can cut DNA at specific sites for gene insertion. D) They speed up the process of transcription. Show Answer Correct Answer: C) They can cut DNA at specific sites for gene insertion. 4. Which is a question a scientist could investigate using principles of biotechnology? A) How long can a wheat plant live without water?. B) What are the effects of extreme cold on wheat plants?. C) Can wheat be genetically modified to be resistant to mold?. D) Which variety of wheat tastes best when made into pasta?. Show Answer Correct Answer: C) Can wheat be genetically modified to be resistant to mold?. 5. In genetic engineering, antibiotic resistance genes are used as? A) Cloning sites. B) Selectable markers. C) Expression units. D) Promoters. Show Answer Correct Answer: B) Selectable markers. 6. The science, art, or occupation concerned with cultivating land, raising crops, and feeding, breeding, and raising livestock; farming. A) Biotechnology. B) Bioremediation. C) Agriculture. D) Economy. Show Answer Correct Answer: C) Agriculture. 7. Which is least likely to show two species share a common ancestor? A) They have similar genetic sequences. B) They have similar embryo development. C) They have analogous body structure. D) They have homologous body structure. Show Answer Correct Answer: C) They have analogous body structure. 8. In gel electrophoresis DNA fragments are seperated on basis of? A) Sequence. B) Size (length). C) Charge. D) Base composition. Show Answer Correct Answer: B) Size (length). 9. What is the name of the international effort to sequence a human's DNA sequence? A) The Gene Sequencing Project. B) The DNA Fingerprinting Project. C) The Nuremberg Trials. D) The Human Genome Project. Show Answer Correct Answer: D) The Human Genome Project. 10. Using microorganisms to clean pollution/oil spills in the environment. A) Bioremediation. B) Aquaculture. C) Genetic modification. D) Biotechnology. Show Answer Correct Answer: A) Bioremediation. 11. In the context of biotechnology, what does the term 'bioethics' refer to? A) The study of biological processes. B) The ethical implications of biological research and applications. C) The economic benefits of biotechnology. D) The technological advancements in biology. Show Answer Correct Answer: B) The ethical implications of biological research and applications. 12. Statement I:Plasmid DNA acts as vectors to transfer the piece of DNA attached to it. Statement II:Vector DNA acts as plasmids to transfer the piece of DNA attached to it. A) Statement I is true, statement II is false. B) Statement I is false, statement II is true. C) Both the statements I and II are true. D) Both the statements I and II are false. Show Answer Correct Answer: A) Statement I is true, statement II is false. 13. This is the practice of cutting DNA and separating it by the size of the pieces A) Cloning. B) Gel Electrophoresis. C) Genetic Engineering. D) DNA Fingerprinting. Show Answer Correct Answer: B) Gel Electrophoresis. 14. DNA fingerprinting works because A) Most genes are dominant. B) All organisms contain RNA. C) The most important genes are different among most people. D) No two people, except identical twins, have exactly the same DNA. Show Answer Correct Answer: D) No two people, except identical twins, have exactly the same DNA. 15. What are some applications of capillary electrophoresis? A) DNA sequencing and DNA profiling. B) Protein synthesis and cell division. C) Photosynthesis and respiration. D) Fermentation and distillation. Show Answer Correct Answer: A) DNA sequencing and DNA profiling. 16. During electrophoresis, an electrical current must be present for DNA fragments to move throughout the gel. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. What ethical consideration is most important when conducting genetic research on human embryos? A) The potential for scientific breakthroughs. B) The long-term effects on human evolution. C) The consent and rights of the embryo. D) The financial cost of the research. Show Answer Correct Answer: C) The consent and rights of the embryo. 18. Which genetic engineering technique amplifies the number of DNA pieces in a lab setting? A) PCR. B) Gel Electrophoresis. C) Gene Therapy. D) CRISPR. Show Answer Correct Answer: A) PCR. 19. This is the practice of producing a genetically identical cell or organism A) Cloning. B) Gel Electrophoresis. C) Genetic Engineering. D) DNA Fingerprinting. Show Answer Correct Answer: A) Cloning. 20. In cloning experiments cDNA molecules can be obtained from an mRNA copy by A) PCR. B) Ribozyme. C) Reverse Transcriptase. D) DNA RNA Hybridisation. Show Answer Correct Answer: C) Reverse Transcriptase. 21. Horizontal gene transfer by plasmid is possible by A) Transformation. B) Transduction,. C) Conjugation,. D) Transformation & conjugation. Show Answer Correct Answer: D) Transformation & conjugation. 22. Which of the following is a common application of beta-carotene in food? A) As a natural food colorant. B) As a preservative. C) As a thickening agent. D) As a sweetener. Show Answer Correct Answer: A) As a natural food colorant. 23. What is a potential environmental benefit of using Aest Biotechnology in agriculture? A) Increased use of chemical fertilizers. B) Reduction in pesticide usage. C) Higher water consumption. D) Increased soil erosion. Show Answer Correct Answer: B) Reduction in pesticide usage. 24. MOLECULAR SCISSORS USED IN GENETIC ENGINEERING IS- A) DNA LIGASE. B) DNA POLYMERASE. C) HELICASE. D) RESTRICTION ENDONUCLEASE. Show Answer Correct Answer: D) RESTRICTION ENDONUCLEASE. 25. What are some examples of biotechnology being used in agriculture? A) Crop irrigation. B) DNA fingerprinting. C) Gentically modified crops. D) Crop rotation. Show Answer Correct Answer: C) Gentically modified crops. ← 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