Expression System Selection and Protein Production
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Questions and Answers

Which organism is preferred for the expression of large proteins (>100 kD)?

  • Fungi
  • Bacteria
  • Viruses
  • Eukaryotes (correct)

What is the problem in plants with the beta-carotene pathway?

  • Lack of ξ-carotene desaturase
  • Lack of phytoene synthase (correct)
  • Lack of lycopene-beta-cyclase
  • Lack of geranylgeranyl diphosphate

What is the solution to the problem of rice lacking enzymes in the beta-carotene pathway?

  • Adding phytoene desaturase
  • Adding ξ-carotene desaturase
  • Adding daffodil gene (correct)
  • Adding lycopene-beta-cyclase

What is the main purpose of developing Golden Rice?

<p>To reduce childhood malnutrition (A)</p> Signup and view all the answers

Which organizations developed Golden Rice?

<p>Both DA-PhilRice and IRRI (A)</p> Signup and view all the answers

What are some benefits of genetically modified crops?

<p>All of the above (D)</p> Signup and view all the answers

What is the role of the daffodil gene in Golden Rice?

<p>It performs both phytoene desaturase and ξ-carotene desaturase functions (A)</p> Signup and view all the answers

What is beta-carotene converted into by the body?

<p>Vitamin A (C)</p> Signup and view all the answers

What is the name given to rice enriched with additional levels of beta-carotene?

<p>Golden Rice (D)</p> Signup and view all the answers

Who will be the first to cultivate Golden Rice?

<p>Farmers in the Philippines (A)</p> Signup and view all the answers

Which of the following benefits can be attributed to genetically modified animals?

<p>Increased resistance, productivity, hardiness, and feed efficiency (D)</p> Signup and view all the answers

What is one potential human health impact associated with genetically modified products?

<p>Allergens transfer (D)</p> Signup and view all the answers

Which of the following is a potential environmental impact of genetically modified products?

<p>Loss of flora and fauna biodiversity (A)</p> Signup and view all the answers

What is one benefit of genetically modified animals for society?

<p>Increased food security for growing populations (A)</p> Signup and view all the answers

What is one potential concern associated with genetically modified products?

<p>Unintended transfer of transgenes through crosspollination (C)</p> Signup and view all the answers

Which of the following is a benefit of genetically modified products for the environment?

<p>Conservation of soil, water, and energy (D)</p> Signup and view all the answers

What is one potential impact of genetically modified products on access and intellectual property?

<p>Biopiracy—foreign exploitation of natural resources (D)</p> Signup and view all the answers

Which of the following is a potential concern associated with genetically modified animals?

<p>Unknown effects on other organisms (e.g., soil microbes) (B)</p> Signup and view all the answers

What is one potential benefit of genetically modified products for animals?

<p>Improved animal health and diagnostic methods (C)</p> Signup and view all the answers

Which of the following is a potential concern associated with genetically modified products for society?

<p>Genetically modified products: controversies (A)</p> Signup and view all the answers

Which type of protein is best suited for expression in a eukaryote?

<p>Large proteins (D)</p> Signup and view all the answers

What is the main purpose of developing Golden Rice?

<p>To reduce childhood malnutrition (A)</p> Signup and view all the answers

What is the role of the daffodil gene in Golden Rice?

<p>To produce beta-carotene (B)</p> Signup and view all the answers

What is the problem in plants with the beta-carotene pathway?

<p>Lack of enzymes (A)</p> Signup and view all the answers

Which organizations developed Golden Rice?

<p>Both DA-PhilRice and IRRI (A)</p> Signup and view all the answers

What is beta-carotene converted into by the body?

<p>Vitamin A (B)</p> Signup and view all the answers

What are some benefits of genetically modified crops?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is a potential concern associated with genetically modified products for society?

<p>Domination of world food production by a few companies (B)</p> Signup and view all the answers

What is one potential human health impact associated with genetically modified products?

<p>Transfer of antibiotic resistance markers (C)</p> Signup and view all the answers

Which of the following is a potential environmental impact of genetically modified products?

<p>Unintended transfer of transgenes through crosspollination (C)</p> Signup and view all the answers

What is one benefit of genetically modified animals for society?

<p>Increased food security for growing populations (C)</p> Signup and view all the answers

What is the main purpose of developing Golden Rice?

<p>Increased food security for growing populations (B)</p> Signup and view all the answers

What is one potential concern associated with genetically modified animals?

<p>Transfer of antibiotic resistance markers (A)</p> Signup and view all the answers

What is one potential benefit of genetically modified products for animals?

<p>Increased resistance, productivity, hardiness, and feed efficiency (B)</p> Signup and view all the answers

What is one potential impact of genetically modified products on access and intellectual property?

<p>Domination of world food production by a few companies (C)</p> Signup and view all the answers

Which organization developed Golden Rice?

<p>International Rice Research Institute (IRRI) (D)</p> Signup and view all the answers

What is the main purpose of developing Golden Rice?

<p>To reduce childhood malnutrition (D)</p> Signup and view all the answers

What is the problem in plants with the beta-carotene pathway?

<p>Lack of enzymes (B)</p> Signup and view all the answers

Which organism is preferred for the expression of large proteins (>100 kD)?

<p>Eukaryote (D)</p> Signup and view all the answers

What is beta-carotene converted into by the body?

<p>Vitamin A (A)</p> Signup and view all the answers

What is one potential concern associated with genetically modified products?

<p>Environmental impact (C)</p> Signup and view all the answers

What is one potential benefit of genetically modified products for animals?

<p>Increased nutrients (D)</p> Signup and view all the answers

Which of the following is a potential concern associated with genetically modified products for society?

<p>Controversies surrounding genetically modified products (A)</p> Signup and view all the answers

What is one potential environmental impact of genetically modified products?

<p>Unintended transfer of transgenes through crosspollination (D)</p> Signup and view all the answers

What is one potential impact of genetically modified products on access and intellectual property?

<p>Biopiracy - foreign exploitation of natural resources (D)</p> Signup and view all the answers

What is one potential human health impact associated with genetically modified products?

<p>Allergens transfer of antibiotic resistance markers (A)</p> Signup and view all the answers

What is one benefit of genetically modified animals for society?

<p>Increased food security for growing populations (A)</p> Signup and view all the answers

What is the main purpose of developing Golden Rice?

<p>Increased food security for growing populations (D)</p> Signup and view all the answers

What is the problem in plants with the beta-carotene pathway?

<p>Loss of flora and fauna biodiversity (D)</p> Signup and view all the answers

Which organizations developed Golden Rice?

<p>International Rice Research Institute (IRRI) and Swiss Federal Institute of Technology (ETH) (A)</p> Signup and view all the answers

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