General Biology: Recombinant DNA Applications
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Questions and Answers

What is the main goal of gene cloning in the context of DNA manipulation?

  • To extract various genes from a single organism
  • To create artificial DNA molecules in the lab
  • To make thousands of copies of a single gene of interest (correct)
  • To combine genes from different species into a single organism
  • In the process of gene design, what do genetic engineers typically do to a cloned gene in order to make it functional in a new organism?

  • Insert the gene into the nucleus without modification
  • Keep the gene in its original form
  • Replace gene regions with enzymes (correct)
  • Combine genes from different sources
  • Which method of transformation aims to insert new genes into cells without harming them?

  • Electroporation
  • Agrobacterium (correct)
  • Microfibers
  • Gene gun
  • What is the purpose of backcross breeding in agriculture when dealing with transgenic plants?

    <p>To obtain high yielding transgenic lines by crossing with elite breeding lines</p> Signup and view all the answers

    What distinguishes recombinant DNA from normal DNA?

    <p>It is artificially created by combining DNA from different sources</p> Signup and view all the answers

    How does gene design differ from gene cloning in the context of genetic engineering processes?

    <p>Gene cloning creates multiple gene copies, while gene design modifies the genes for functionality</p> Signup and view all the answers

    What is the main purpose of genetically engineering golden rice?

    <p>To promote B-carotene biosynthesis</p> Signup and view all the answers

    Which industry focuses on growing commercial crops with recombinant DNA to increase resistance to herbicides?

    <p>Agricultural Industry</p> Signup and view all the answers

    What is a common feature of homologous structures in different organisms?

    <p>They show common ancestry and are similar in function</p> Signup and view all the answers

    Which type of structures are remains of a structure that is no longer functional but show common ancestry?

    <p>Vestigial Structures</p> Signup and view all the answers

    What do fossils primarily provide evidence for?

    <p>Evolutionary changes over time</p> Signup and view all the answers

    What is a key observation scientists made about embryos during their development in different animals?

    <p>All vertebrates have a post-anal tail and paired pharyngeal pouches</p> Signup and view all the answers

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