To validate the system for a variety of sample DNA sources, we tested DNA specimens from whole blood, dried blood spots, buccal swabs, and lymphoblastoid cell lines.
The man, David A. Jones, was released in March after he was cleared by DNA specimens.
But new evidence, specifically DNA specimens and statements from a convicted murderer who says he alone raped the woman, has put the confessions in question.
Further DNA specimens suggest that migrating farmers took cats with them as they moved into Europe, with remains in Bulgaria and Romania dating to 6,000 years ago.
The California action follows efforts by New York State, which has sent letters to 31 genetic testing companies since November, saying they need licenses to solicit DNA specimens from the state's residents.
It also demonstrates the utility of WGA of trace DNA specimens coupled with either Roche 454 sequencing technology or Pacific Biosciences single molecule real-time sequencing technology.
DNA specimens from 23 previously studied HNPCC patients were analyzed by DHPLC, and all mutations were correctly identified and confirmed by sequence analysis.
In Maryland, an elderly woman died of E. coli on Sept. 13 after eating fresh spinach, state health officials confirmed, but because of a lack of DNA specimens from the victim, officials have yet to determine whether it was the same strain of E. coli that infected others who ate spinach.
DNA specimens, for instance, are sometimes contaminated; fingerprint, ballistics and even run-of-the-mill drug and alcohol analyses depend on human interpretation and thus are subject to error.
To validate the system for a variety of sample DNA sources, we have tested 336 DNA specimens from whole blood, dried blood spots, buccal swabs, and lymphoblastoid cell lines.
The extracted DNA specimens were stored at −20°C until used.
