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 ?
Printing devices and photocopying machines emit harmful pollutants including engineered nanoparticles, metals, semi-volatile organics and volatile organic compounds which create toxicological issues associated with long-term exposures to the emitted pollutants.1 Deoxyribonucleic acid (DNA) damage has been found to be influenced by confounding factors such as age, alcohol usage, smoking and duration of exposure.
It assumes a key part in finding interpretation element restricting locales in deoxyribonucleic acid arrangements.
Seroconversion of anti-nuclear antibody and double stranded deoxyribonucleic acid has been observed in patients exposed to TNF-[alpha] antagonists with an incidence of 25% to 80% and 5% to 15%, respectively.
Every human's genome is made of a chemical called deoxyribonucleic acid or DNA for short.
The new report examines epigenetics, which refers to a selective regulation of gene expression within different cells that does not affect the genomic makeup of the Deoxyribonucleic Acid (DNA) sequence.
RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) and protein, are essential for all known forms of life.
Quiz of the Day ANSWERS: 1 Steve Collins; 2 The Beach Boys; 3 Iona; 4 Kendal; 5 The scientific study of death; 6 Spree (from the word 'spreath'); 7 Secret agent; 8 A type of salamander found in north and central America; 9 Sir Don Bradman; 10 Deoxyribonucleic acid.
The University of Adelaide team converted the mammoth blood DNA (deoxyribonucleic acid) into RNA (ribonucleic acid) and then inserted it into E.
the 2002 Bali bombings, saying no deoxyribonucleic acid (DNA) test was needed.
Allele: One of two or more variants of a gene or other deoxyribonucleic acid (DNA) sequence.
Chromosomes are long, coiled molecules of DNA (deoxyribonucleic acid) that together contain the blueprint for building cells on thousands of genes.
What is the common abbreviation for deoxyribonucleic acid?

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