DNA+and+CSI

Research how DNA is used in CSI.

Fingerprints and Bacteria
Researchers from the University of Colorado at Boulder have shown that [|bacteria] found on the [|skin] can be used as personal identifiers. This is possible because [|bacteria that live on your skin] and reside on your hands are unique, even among identical twins. These [|bacteria are left behind on the items] we touch. By genetically sequencing bacterial [|DNA], specific bacteria found on surfaces can be matched to the hands of the person from which they came. These bacteria can be used as a type of fingerprint because of their uniqueness and their ability to remain unchanged for several weeks. Bacterial analysis could be a useful tool in forensic identification when human DNA or clear fingerprints can not be obtained.

Urban Myth Disproved: Fingerprints Do Not Improve Grip Friction Source: Journal of Experimental Biology Summary: Everyone thinks that they know what fingerprints are for: to improve your grip's friction. But it turns out that this urban myth is wrong. Scientists have proved that instead of improving your grip, fingerprints drastically reduce friction. http://www.sciencedaily.com/releases/2009/06/090612092729.htm

DNA Testing and privacy https://www.youtube.com/watch?v=U3EEmVfbKNs