DNA+Profiling

= ** What is DNA fingerprinting? **  =
 * Alec Jefferys invented DNA fingerprinting at the University of Leicester in 1985
 * technique to distinguish between individuals of the sa me species using only samples of their DNA.
 * used in forensic science, wild animal studies, paternity tests, identifying bodies, and determining the composition of foods.





= = = **__STEPS IN DNA FINGERPRINTING:__ ** =

1. a sample of DNA is taken. 2. detergent is used to break open white blood cells. 3. DNA is separated from the extra cellular material. 4. restriction enzymes cut DNA into smaller pieces at specific sequences called  restriction fragments length polymorphisms (RFLP) 5. RFLP are put into aragose gel. 6. gel electrophoresis sorts fragments according to size. 7. electrical current is turned on, causing negative RFLPs to move toward the positive end. 8. it's covered with a piece of nylon and thin paper towels to absorb the moisture from the gel. 9. it's trasferred from the gel to the surface of the nylon, or blotting. 10. radioactive probes get washed over the nylon surface. 11. probes join to other DNA fragments with the same composition. 12. photographic film is placed on top of the nylon surface; probes leave dark bands, after they are developed, where they were attached to the RFLP. ​

= DNA Fingerprinting..... Is it harmful or helpful? =

​ Did you know that DNA can save your life? Well, all of our problems are solved through the process of DNA fingerprinting. First of all, DNA fingerprinting, in general, keeps our society safe. Specifically, DNA fingerprinting not only helps individuals prevent various diseases, but it can also prepare individuals for possible diseases. However, although DNA fingerprinting can help people, it can also harm them. For example, DNA is on file, ruing the risk of other people seeing it. Often times there has been arguments concerning whether or not individuals should undergo the process of DNA fingerprinting.

= Works Cited =

"DNA Fingerprinting." //Fine Art DNA Designed Gifts//. Web. 19 Nov 2009. <@http://dnamazing.com/wp-content/uploads/2007/08/dnabasics2.JPG>.

"Genetic Fingerprinting." //Bio-Medicine//. 2009. Bio-Medicine, Web. 17 Nov 2009. <@http://www.bio-medicine.org/biology-definition/Genetic_fingerprinting/>.

Harris, William. "How DNA Evidence Works." //How Stuff Works//. 2009. HowStuffWorks Inc., Web. 18 Nov 2009. <@http://science.howstuffworks.com/genetic-science/dna-evidence.htm>.

//How does DNA Fingerprinting Work?//. Web. 18 Nov 2009. <@http://techsaathi.in/hdfingerprntwrk.htm>.

Landers, John. "DNA Fingerprinting: Pros and Cons." //eHow//. 2009. eHow Inc., Web. 18 Nov 2009. <@http://www.ehow.com/about_5519333_pros-cons-dna-fingerprinting.htm>.