Finger+Printing

HISTORY OF DNA FINGERPRINTING DNA Finger Printing has been use since the late 1900s. A man named Alec Jeffrey developed a technique to display a person's genetic code as an X-ray picture of bands of dark and light. This happened by attachments of radioactive segments of DNA on certain sites on the DNA fragments forming a different pattern for every person. 3 years later another man named Henry Erlich developed an method that could be used to identify someone with just a extremely small samples of DNA. Henry technique combined Jeffery's method and PCR (see methods). Using his new technique Erlich was able to duplicate and heat-separate hair samples. Then after amplifying the DNA, it was able to be used to obtain a DNA Fingerprints.

GENETICS DNA Fingerprinting is taking from DNA cells in a sample of blood, saliva, semen or other appropriate fluid or tissue. After taking a sample you extract the DNA. There are many methods that work better with each sample.

METHODS DNA Finger printing begins with taking DNA from cells in blood, saliva, semen, or other fluid or tissue.

RFLP**(restriction fragment length polymorphism):** Analyzes the length of strands of DNA Molecules with repeating base pair patterns.  http://www.scq.ubc.ca/dna-fingerprinting-in-the-standardization-of-herbs-and-nutraceuticals/

PCR**(polymease chain reaction):**useful in identifying DNA fingerprints and in paternity(parent test) tests because it requires less amounts of DNA because it makes identical copies of the DNA sample  http://www.scq.ubc.ca/dna-fingerprinting-in-the-standardization-of-herbs-and-nutraceuticals/

AMpflp**(amplified fragment length polymorphism):** less complicated, Uses the PCR analysis to amplify the minisatellite loci( a section of DNA that consists of a short series of base)of the human cell.

STR**(short tandem repeat):** Widely based on PCR; how many times the base pairs repeat themselves.

How is DNA fingerprinting used today DNA Fingerprinting is used mostly by the NSA, FBI, police force ect. They DNA Fingerprint criminals to put in their data base. DNA Fingerprinting helps with individual's biological parents when finding out who a child belongs to.

FUN FACTS

DNA Printing is also known as DNA Testing, DNA typing and Genetic Fingerprinting DNA Fingerprinting is the blueprints of the body of every human being People are concerned that the police forces rely to much on DNA Fingerprinting. Governments exchange DNA fingerprints.

SITES "Forensic-fingerprint ".INTERPOL.Web.29 Mar 201. Fingerprinting.Web.29 Mar.2011  "Genetic DNA Fingerprinting". Edinformatics--Education for information age. Web.30 Mar 2011. <http://www.edinformatics.com/forensic/genetic_dna_fingerprinting.htm> "Genetic fingerprinting-Used, Blood, Bod,History, History, Ehrlich Method, Application." medical discoveries. Web.30 Mar 2011. <http://www.discoveriesinmedicine.com/Enz-Ho/Genetic-Fingerprinting.html>