This quiz works best with JavaScript enabled. Home > Biotechnology > Genetic Engineering > Genetic Engineering – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Genetic Engineering Quiz 31 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Increase in the number of copies of a gene in a genome A) DNA Primer. B) Gene amplification. C) Gene. D) Genetic Engineering. Show Answer Correct Answer: B) Gene amplification. 2. Which step is 2nd in PCR? A) Extension:DNA polymerase adds nucleotides to make new DNA. B) Denaturation:Heat is added to separate the DNA strands. C) Annealing:Cooling to allow primers to join to the DNA. D) None of above. Show Answer Correct Answer: C) Annealing:Cooling to allow primers to join to the DNA. 3. What is the purpose of plasmid DNA isolation in molecular cloning? A) To obtain pure plasmid DNA for use in molecular cloning techniques. B) To use as a food additive. C) To study the structure of plasmid DNA. D) To create a new species of bacteria. Show Answer Correct Answer: A) To obtain pure plasmid DNA for use in molecular cloning techniques. 4. Which of the following is a key tool used in genetic engineering? A) Bacteria. B) Vitamins. C) Enzymes. D) Proteins. E) Hormones. Show Answer Correct Answer: C) Enzymes. 5. To join two fragments of DNA together, they must have complementary sticky ends and therefore, they must be cut using ..... restriction enzyme. A) Different. B) The same. Show Answer Correct Answer: B) The same. 6. What are genetically modified organisms (GMOs) and how are they created? A) Organisms whose genetic material has been altered using genetic engineering techniques. B) Organisms that have been altered using chemical pesticides. C) Organisms that have evolved naturally over time. D) Organisms that have been created through selective breeding. Show Answer Correct Answer: A) Organisms whose genetic material has been altered using genetic engineering techniques. 7. A method for getting plasmid DNA into bacterial cells A) Cloning. B) Restriction enzymes. C) Transformation. D) Shock. Show Answer Correct Answer: C) Transformation. 8. The complete set of genetic information that an organism carries is called a A) Gene. B) DNA. C) Genome. D) Plasmid. Show Answer Correct Answer: C) Genome. 9. An inability to adapt to environmental changes can lead to death of all members of a species. This is called ..... A) Expatriation. B) Examination. C) Extermination. D) Extinction. Show Answer Correct Answer: D) Extinction. 10. During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus. A) TRNA. B) MRNA. C) RRNA. D) DRNA. Show Answer Correct Answer: B) MRNA. 11. What is used to 'cut' the bacterial plasmid open? A) Enzymes. B) Genes. C) Chromosomes. D) Ribosomes. Show Answer Correct Answer: A) Enzymes. 12. Adding or deleting segments of genes to correct or get rid of genetic disorders. A) Gene Splicing. B) Genetic Screening. C) Gene Therapy. D) Stem Cell Therapy. Show Answer Correct Answer: C) Gene Therapy. 13. If Chargaff found that a sample of DNA has 20% ADENINE, how much GUANINE would he have determined to be there? A) 30%. B) 20%. C) 80%. D) 60%. Show Answer Correct Answer: A) 30%. 14. All of the following are advantages of GMO's except A) Pest resistant crops. B) More nutritional foods. C) Unknown long term health effects. D) Creating more human insulin. Show Answer Correct Answer: C) Unknown long term health effects. 15. Copies of the normal clotting factor gene are introduced into the cells of human male who have the mutant version of the gene. A) Agriculture. B) Bioremediation. C) Gene Therapy. D) Genetic Testing. E) Pharmaceuticals. Show Answer Correct Answer: C) Gene Therapy. 16. Used to build matching nucleotides in PCR A) Taq Polymerase. B) Ligase. C) DNA. D) Buffer. Show Answer Correct Answer: A) Taq Polymerase. 17. In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species? A) Rr. B) R. C) RR. D) RR or Rr. Show Answer Correct Answer: D) RR or Rr. 18. Factors that control traits are A) Purebreds. B) Genes. C) Recessives. D) Parents. Show Answer Correct Answer: B) Genes. 19. The multiple cloning site contains ..... that allow easy insertion of genes and other DNA sequences into a plasmid. A) Restriction sites. B) Restriction enzymes. C) Promoters. D) Chromosomes. E) Nucleotide pairs. Show Answer Correct Answer: A) Restriction sites. 20. Organisms containing DNA from a foreign donor A) Plasmid. B) Clones. C) Transgenic organisms. D) None of above. Show Answer Correct Answer: C) Transgenic organisms. ← PreviousNext →Related QuizzesBiotechnology QuizzesGenetic Engineering Quiz 1Genetic Engineering Quiz 2Genetic Engineering Quiz 3Genetic Engineering Quiz 4Genetic Engineering Quiz 5Genetic Engineering Quiz 6Genetic Engineering Quiz 7Genetic Engineering Quiz 8Genetic Engineering Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books