Biology: The Dynamics of Life, North Carolina Edition

Chapter 11: DNA and Genes

Web Links


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DNA Replication
Follow the link above to access information about how the structure of DNA was determined. What is the difference between semiconservative and conservative replication? What did Messelson and Stahl's experiment demonstrate? What is a replication fork?
( http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/D/DNAReplication.html )
DNA Fingerprinting
Learn about the structure of DNA and how it relates to the technique of DNA fingerprinting. What are the uses of this technique? Are there any problems with it?
( http://www.forensicscience.org/resources/dna-fingerprinting/ )
Roslin Institute
Visit this site to read about cloning and nuclear transfer. How did researchers successfully cloned the sheep named Dolly. Record this information in your science journal.
( http://www.roslin.ac.uk/ )

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National Society of Genetic Counselors
This is the Web page for the National Society of Genetic Counselors (NSGC), representing more than 1,500 genetic counselors. What sort of education is required for you to become a genetic counselor?
( http://www.nsgc.org/ )
Genetic Counselor
Visit this site to more about becoming a genetic counselor. Click on the link "Educational Information." Read a profile about a scientist that works in the genetic field.
( http://www.utexas.edu/student/careercenter/careers/genetic.html )
Prenatal Genetic Counseling
Visit this sight to learn the kind of problems a genetic counselor may tackle? Why is it important for a genetic counselor to work well with people?
( http://www.babycenter.com/refcap/pregnancy/prenatalhealth/1607.html )

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The Watson-Crick Model
Visit this site to learn about the Watson-Crick Model. Click on the link "Base pairing in DNA: The Watson -Crick Model. Go back to the main menu and explore some of the other topics on the page.
( http://www.ncc.gmu.edu/dna/index.htm )
The Discovery of the Double-Helical Structure of DNA
Visit this site to learn about the scientists that discovered the structure of DNA. What were some of the problems that had to be overcome?
( http://www.ba-education.demon.co.uk/for/science/dnamain.html )
DNA Structure
This site has a lot of information about DNA structure and several graphics. Click on one of the links to find more information. Be sure to visit the Graphics Gallery. Draw your own model of DNA.
( http://www.cornwall.ac.uk/stac/learningzone/zone2/DNAstrt.htm )

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STM Image Gallery
Visit this site to see various examples of images from a scanning tunneling microscope, which is used to "view" actual atoms. After visiting this site, describe to a friend the different types of atoms you have seen.
( http://www.almaden.ibm.com/vis/stm/gallery.html )
OMICRON: Application Examples
This SPM's manufacturer's site offers several examples of SPM images. Visit this site and view various images. How do SPM images differ from light microscope images. Draw pictures in your science journal that show the differences.
( http://www.omicron-instruments.com/xamples.html )
Scanned Images
This site has more images taken with scanning tunneling microscopes. Click on an image to open a page that contains more information about the photograph.
( http://catalyse.univ-lyon1.fr/websmcp/english/0galeriechamproche2.html )

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Cystic Fibrosis
Visit this site for information on cystic fibrosis. What causes cystic fibrosis and what are the symptoms?
( http://www.cysticfibrosis.com/info/info.htm )
Cystic Fibrosis
This site has additional information on cystic fibrous. How is cystic fibrosis passed on to future generations?
( http://www.nhlbi.nih.gov/health/public/lung/other/cf.htm )
Cystic Fibrosis
Visit this site provided by the Mayo Clinic for information on cystic fibrosis. Which segment of the population does this disorder primarily affect?
( http://www.mayoclinic.com/invoke.cfm?id=DS00287 )
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