how can DNA catch crimes ????
please give me some webs that I can find crimes stories and DNA helped out to catch it????
pleaseeeeeeee
2007-03-19 13:33:23 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The Criminal Science Investigators (CSI) collect blood or hairs from the crime scenes and they take it to the lab and from the hair sample or blood smaple they can get the DNA of the suspect, then they go to the database on their computers where every criminal has his DNA checked and they see if there's a match with the data base....if there is then they have their criminal if not, they get suspects from interrogations and they they check their DNA and they get the criminal like that.
Watch the program: CSI or CSI MIAMI or CSI NEW YORK
websites:
www.livescience.com/dna
www.sciencedaily.com/releases/2006/04/060425091854.htm
2007-03-19 19:57:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Electrophoresis (sp?) is the test involved in DNA fingerprinting. It spreads out the DNA (I don't know how) so that you can see different horizontal lines. If the DNA from the crime scene and the DNA from the suspect line up the same, you have your match.
DNA can be taken from semen, blood, or any other traces left behind.
2007-03-19 21:02:37 · answer #2 · answered by JLB 3 · 0⤊ 0⤋
You DNA is a code that they can link to crimes because it does not change. It's uncanningly unique.
2007-03-19 20:52:20 · answer #3 · answered by SadToday22 3 · 0⤊ 0⤋
dna can be found at a crime scene and matched to a suspects to prove he commited it.
2007-03-19 21:02:47 · answer #4 · answered by wesnaw1 5 · 0⤊ 0⤋