Abstract
ABSTRACTDNA tests conducted in 1995 ied to the exoneration of Guy Paul Morin for the 1984 sex-slaying of nine-year-old Christine Jessop. This paper provides an overview of the DNA tests conducted in the case, up to and including those that excluded Guy Paul Morin as a possible source of spermatozoa found on the deceased's under- wear. Previous attempts to derive a DNA profile for the spermatozoa were hampered by a potent inhibitor of the polymerase chain reaction (PCR). PCR inhibition was eventually overcome by pretreating the samples with thiopropyl Sepharose 6B beads and supplementing the PCR with bovine serum albumin (BSA) and additional Taq polymerase. This strategy may prove useful for other cases in which PCR amplification is inhibited.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.