Biotechnology This section will concentrate on recent advances in biotechnology A Web site name Nova – Cracking the code of life Web URL http by amp99049

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									                               Biotechnology

      This section will concentrate on recent advances in biotechnology.

A)    Web site name: Nova – Cracking the code of life

      Web URL: http://www.pbs.org/wgbh/nova/genome/dna.html#

Click on “Journey into DNA” at the bottom of the page (if you do not have Flash,
you can either download it for free from this page, or just click on the “non-Flash
version”). In the Flash version, click on the + sign to go to the next page.

1)    Roughly how many cells are in the human body? ______________________

2)    What is the result of DNA “turning on” or “turning off” different sections of
      its information? ________________________________________________

3)    Which cell does not have a nucleus? _______________________________

4)    What do dark bands in the chromosome indicate? _____________________
      _____________________________________________________________

5)    How many atoms make up a nucleotide? ____________________________


B)    Web site name: BBC News (31 August 2005)

      Web site address: http://news.bbc.co.uk/2/hi/science/nature/4197844.stm

Read “Life code of chimps laid bare”

6)    How similar are humans and chimps in the most important areas of their
      “life codes” (the genes): ___________ % identical

7)    Which five countries worked together to sequence the chimp DNA?
      ___________________________________________________________

8)    How long ago did chimps and humans share a common ancestor?
      _____________________________________________
9)    If you include non-coding or “junk” DNA how different are we from
      chimps? ___________ %

10)   What are three human characteristics?
      _____________________________________________________________
      _____________________________________________________________

11)   Which gene seems to protect chimps from Alzheimer’s disease?
      _______________________________________

12)   Which other mammals have had, or are having, their genes sequenced?
      _____________________________________________________________



C)    Web site name: Oak Ridge National Laboratory

      Web site URL:    http://www.ornl.gov/sci/techresources/Human_Genome/medicine/genetest.shtml


Read “Gene testing”

13)   In gene tests, what do scientists scan a patient’s blood for?
      _____________________________________________________________

14)   How much do the tests cost? ______________________________________

15)   What are two advantages of genetic testing (use your own words):
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________

16)   What is one disadvantage of testing? _______________________________

17)   How many genetic tests are available? ______________________________

18)   Is genetic testing regulated? ________ Do you think it should be? (explain):
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
D)    Web site name: Oak Ridge National Laboratory (Forensics)

      Web site address:   http://www.ornl.gov/sci/techresources/Human_Genome/elsi/forensics.shtml

19)   How many DNA regions do forensic scientists scan? __________________

20)   What are two examples, apart from crime scenes, where forensic
      identification is useful? __________________________________________
      _____________________________________________________________

21)   What percentage of DNA differs from person to person? _______________

22)   What are the odds for correct identification in eyewitness accounts? ______

23)   Why is RFLP not used as much as it once was?
      _____________________________________________________________
      _____________________________________________________________

24)   Using STR analysis what are the odds that two individuals will have the
      same DNA profile? __________________________________

25)   What material can be analyzed with mitochondrial DNA but not with STR?
      ______________________________________________

26)   Click on one of the “Interesting Uses of DNA Forensic Identification”,
      and summarize what is says in your own words:
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
E)    Web site name: New Scientist magazine (April 2005)

      Web site URL: http://unadonna04br.multiply.com/journal/item/95

      Read “Will DNA profiling fuel prejudice?”

27)   How has the crime clear-up rate changed since DNA evidence was
      introduced? From: _____% to _____%

28)   Which state in the US allows police to retain DNA evidence from all those
      arrested? ____________________________________

29)   What is one argument against an increased DNA database?
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________

30)   What future techniques are being studied by Danesh Kara?
      _____________________________________________________________
      _____________________________________________________________

31)   Do you think that Florida should allow the police to keep DNA samples of
      everyone who has been arrested? _________ Explain why.
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________

32)   Do you think that everyone in the entire country should be DNA
      fingerprinted? ___________ Explain your answer.
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
      _____________________________________________________________
F)      Go to a news website, such as CNN http://www.cnn.com
        or ABC news http://abcnews.go.com/ or your local news station.

        Use the “Search” button to look for recent articles dealing with “genetic
     fingerprint” or “DNA fingerprint” or “biotechnology”. Click on several sites
     and pick the most interesting one.

34). Which news site did you go to? _______________________________

35). What is the title of the article you picked?
     _____________________________________________________________

36). Does the website have photos or diagrams? __________________________

37). Briefly summarize the article in your own words:
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________
     _____________________________________________________________

								
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