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Transcript
Name ________________________
Period___
Biology CP
BioTechnology: Web Quest
Part 1 - Manipulating Genes
Go to http://www.dnai.org/b/index.html
Read the introduction. What were some questions scientists asked in the 1970’s regarding
the genes in DNA?
1. Questions
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
____________________________________________________________________
Click on Revolution
Summarize the problem
2. Summary of problem
________________________________________________________________________
________________________________________________________________________
Click on Pieces of the Puzzle (top menu bar)
Learn about each piece of the puzzle by clicking on it. Read the text and view the
animations.
Summarize what you have learned. You do not have to go in the order listed below.
3. Restriction Enzymes -
4. DNA ligation -
5. The First Recombinant DNA -
6. DNA Transformation -
Click on Techniques (bottom of page)
Click on Cutting & Pasting (top of page)
Click on the Cutting & Pasting DNA button. Read the text and view the video.
7. Make 3 sketches; a) Before DNA is cut b) After it is cut, and c) after it is pasted
together. (Include nitrogen bases and which type of enzyme is used at each stage.)
a)
b)
c)
Click on Recombining DNA. Read the text and view the video.
8. What is a plasmid? ____________________
What organisms have plasmids?__________
9. Summarize the technique developed in the 1970’s in which a DNA fragment is added
to a plasmid.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Part 2 – Gel Electrophoresis
Go to
http://www.sumanasinc.com/webcontent/animations/content/gelelectrophoresis.html
Click through the step by step animation and answer the following questions.
1. The DNA is being cut into fragments by __________________________________
2. Where are the fragments transferred? ___________________________________
3. What goes through the gel that creates a negative charge on one end (cathode) of the
gel box and a positive charge (anode) on the other end of the gel box?
__________________
4. What charge do the DNA fragments have? ____________________.
5. If you place the DNA on the negative side of the gel box it will be attracted to the ….?
6. What do you think happens if the DNA fragments are all different sizes (with different
weights) as they move through the gel? Where will they end up on the gel?
Part 3 – DNA Fingerprinting (an application of biotechnology)
Go to http://www.pbs.org/wgbh/nova/sheppard/analyze.html
In this section you will solve a “crime” by doing a “DNA fingerprint” found at the crime
scene and comparing it to the “DNA fingerprints” of several suspects. By comparing the
DNA from the crime scene with the suspects’ DNA you will find the “criminal”.
Read the introduction then proceed through parts 1, 2, & 3. Do the simulated procedure.
Which sister committed the crime? __________________________________.
Part 4 Applications
Go to http://www.dnai.org/d/index.html
You have already investigated one application of biotechnology in the above
“fingerprinting” activity. In this section other applications of the technology are
explained. Choose between the Genes & Medicine or the Human Origins modules and
explore it. Pick an area of interest for you in either module and write a short paragraph
about it. What did you learn?
Part 5 – Ethics
Go to http://www.thetech.org/exhibits/online/genome/thread3.html
In this section you will explore some ethical issues associated with biotechnology.
Click on each dilemma. Read the dilemma and decide what you would do. Put your
answer on the appropriate line.
1.Be a parent____________________________________________________________
________________________________________________________________________
________________________________________________________________________
2. Be a judge
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
3. Be a doctor
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
4. Be a voter
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
5. Be a patient
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________