Archive for September, 2009
DNA Authentication
Sep 2nd
While recent advances in DNA technology have revolutionized the field of forensic science, it also makes us question whether or not the evidence at a crime scene is genuine. Basic techniques such as PCR, molecular cloning, and the most recent whole genome amplification, allow for someone to synthesize DNA under any genetic profile in vitro. This artificial DNA can then be implanted into human tissues or placed on the surface of objects, and planted at a crime scene. Current forensic procedure cannot distinguish between artificial and natural DNA samples.
The company Nucleix is now offering a tool to distinguish between natural and More >
Copy number variation in Schizophrenia
Sep 1st
Ever had the feeling you have lost your marbles? According to the Phrase Finder that expression has conveyed a sense of loss, anger, and more recently a lack of common sense or sanity. As it turns out it may be the loss of certain segments of DNA (rather than simple mutations like SNPs) that may have a lot to do with the origins of mental illnesses like schizophrenia.
Now before you start thinking that schizophrenics are the only ones to lose their marbles (or large sections of their genomes), It has been previously shown by work like that of Jonathan Sebat of More >
