Friday, January 28, 2011

Genetic Engineering

GENETIC ENGINEERING WEBQUEST
Ms. Carter – Gunderson High School

Bioengineered Foods?


INTERACTIVE: Engineering a Crop: Transgenic Manipulation
Read the Background Essay and answer these questions:

  1. Cross-breeding is a type of selective breeding. Explain how it works.




  1. Scientists use “transgenic manipulation” to produce organisms with desirable characteristics. Think of it as designing the perfect organism. How do they do it?





PLAY the INTERACTIVE and answer these questions:

  1. List the materials needed





  1. LIST and EXPLAIN the steps of transgenic manipulation.











  1. What is a “vector’?


  1. What was the purpose of using the herbicide?


VIDEO: Classical Versus Transgenic Breeding
Read the Background Essay information, watch the video and answer these questions:

  1. Selective breeding is also called “classical breeding.” Explain “selective breeding.”




  1. Explain the similarities and differences between “selective breeding” and “genetic engineering”





  1. What does GMO stand for?

  1. LIST the benefits of GMOs



  1. LIST and explain the four major public concerns regarding GMOs











  1. For what kind of characteristics have food crops been selectively bred?



  1. What are some examples of harmful effects of selective breeding.










Video: Bt Corn

Read “Background Essay” first, watch the video and answer these questions:

  1. What dos Bt stand for?

  1. Why/how do scientists use Bt in plants?


  1. Using Bt toxin in plants has some “unintended effects.” LIST and EXPLAIN those effects.










  1. How will these “unintended effects” affect evolution?


  1. What are “refuges”?


  1. How is Bt introduced into the genes of corn? Video




    1. How is this process called?


  1. How is Bt used differently for organic farming than in biotech corn? Video



  1. How could the use of Bt in biotech corn impact the use of Bt for organic farming?








Video: Super Salmon
Read the Background Essay, watch the video and answer these questions:

  1. What does “transgenic mean”?


  1. What has been done to the Atlantic Salmon and why?



  1. What seems to be the problem as presented by scientists Muir and Howard in 1999?




  1. What are the concerns consumers have regarding transgenic organisms?




  1. What allows transgenic salmon to grow in winter? ( questions 5-8 are from the video)



  1. What are some possible consequences of transgenic salmon escaping from their pens into the ocean populations?



  1. How might transgenic salmon affect the evolution of other salmon populations?



  1. Do you thing the FDA should give Aqua Bounty permission to grow and sell transgenic salmon? Why or why not?












GENETIC ENGINEERING: CLONING


Animal Cloning 101
Read the Background Essay and answer these questions:

  1. What is reproductive cloning?


  1. Explain the 2 techniques used in reproductive cloning.






  1. What are some of the problems in cloning animals?





PLAY the INTERACTIVE and answer these questions:

  1. What is a clone? Examples of clones



  1. What is cell differentiation?


  1. LIST the steps used in “The Creation of Dolly”













  1. How is the method used to clone a mouse different from the method used to clone Dolly?

Click and Clone: MIMI Mouse


In this Interactive, you’ll be cloning a mouse using the Somatic Nuclear Transfer method.
PLAY the interactive and answer these questions:

  1. LIST and EXPLAIN the 6 steps of cloning used here.




















2. What color was the baby mouse? Why?