DNA

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DNA

n. scientifically, deoxyribonucleic acid, a chromonal double chain (the famous "double helix") in the nucleus of each living cell the combination of which determines each individual's hereditary characteristics. In law, the importance is the discovery that each person's DNA is different and is found in each living cell, so a hair, blood, skin or any part of the body can be used to identify and distinguish an individual from all other people. DNA testing can result in proof of one's involvement or lack of involvement in a crime scene. While recent DNA tests have proved a convicted killer on death row did not commit a crime and resulted in his release, current debate concerns whether DNA evidence is scientifically certain enough to be admitted in trials. The trend is strongly in favor of admission.

DNA

abbreviation for deoxyribonucleic acid, a chemical which is found in virtually every cell in the body and which carries genetic information. Except for identical twins, each person's DNA is unique. DNA profiling doesn't allow the examination of every single difference between people's DNA so the concentration will be on those aspects which are most likely to yield a difference. DNA can be extracted from any cells that contain a structure called the nucleus, for example, blood, semen, saliva or hair.

Mitochondrial DNA is inherited only from a person's mother. Brothers and sisters have the same mitochondrial DNA type as their mother. This feature of mitochondrial DNA can be used for body identification. The γ-chromosome is present only in men and is largely unchanged as it passes through the male line of a family. The usefulness of the technique in criminal matters is vastly enhanced by the extent to which it is possible to compare a sample with other individuals. To this end there is a National DNA Database maintained by the ASSOCIATION OF CHIEF POLICE OFFICERS and managed by the FORENSIC SCIENCE SERVICE. Techniques vary. There is a UK offence of DNA theft. It is also of assistance in paternity matters.

References in periodicals archive ?
As described in this project, DNA construct containing Fc portion of IgG fused to Foxp3 was designed in pIRES-EGFP plasmid.
It was demonstrated that intradermal co-administration of DNA encoding SPI-6 with DNA constructs encoding HPV16E7, generated E7-specific CD8+ T cell immune responses and E7-specific anti-tumor effects.
Gen9 is the premier next-generation gene synthesis company focused on high-quality, high-throughput, automated production of DNA constructs. The Gen9 technology allows for the lowest-cost and highest-quality DNA constructs commercially available.
Nanoscale DNA constructs would have the ability to be absorbed into tissues directly through the skin by contact and as such, considerations for handling, allergenicity and toxicity should be addressed by specifically regulating the technology.
All DNA constructs were linearized by Fsp I before transfection.
has entered into a collaboration and research license agreement with AstraZeneca (NYSE: AZN) for the development and clinical assessment of plasmid DNA constructs, the company said.
Genotype Specification Language (GSL), is a programming language that facilitates the rapid design of large and complex DNA constructs used to engineer genomes.
Test vaccination with DNA constructs that express conserved influenza A nucleoprotein (NP) or NP plus matrix (M) induced antibody and T-cell responses and protected against heterosubtypic viruses (1,2).
These technologies will enable DNA Script to advance its technology towards the production of long, high-quality DNA constructs.
Examples of such systems are recently synthesised DNA constructs and telechelic star polymers.The novelty of DELTAS lies in the focus put on the role of the internal flexibility as a tool to tune the dynamics and the rheology of equilibrium gels.